diff --git a/Dockerfile b/Dockerfile
index 487ef55..eb5dc4e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,10 @@
-FROM golang:1.21 as builder
+FROM golang:1.21 AS builder
 RUN git clone https://github.com/protolambda/eth2-testnet-genesis.git  \
     && cd eth2-testnet-genesis \
     && go install . \
     && go install github.com/protolambda/eth2-val-tools@latest \
-    && go install github.com/protolambda/zcli@latest
+    && go install github.com/protolambda/zcli@latest \
+    && go install github.com/miguelmota/go-ethereum-hdwallet/cmd/geth-hdwallet@latest
 
 FROM debian:latest
 WORKDIR /work
@@ -11,18 +12,18 @@ VOLUME ["/config", "/data"]
 EXPOSE 8000/tcp
 RUN apt-get update && \
     apt-get install --no-install-recommends -y \
-    ca-certificates build-essential python3 python3-dev python3.11-venv python3-venv python3-pip gettext-base jq wget curl && \
+    ca-certificates gettext-base jq yq wget curl && \
     apt-get autoremove -y && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
 COPY apps /apps
 
-ENV PATH="/root/.cargo/bin:${PATH}"
-RUN cd /apps/el-gen && python3 -m venv .venv && /apps/el-gen/.venv/bin/pip3 install -r /apps/el-gen/requirements.txt
 COPY --from=builder /go/bin/eth2-testnet-genesis /usr/local/bin/eth2-testnet-genesis
 COPY --from=builder /go/bin/eth2-val-tools /usr/local/bin/eth2-val-tools
 COPY --from=builder /go/bin/zcli /usr/local/bin/zcli
+COPY --from=builder /go/bin/geth-hdwallet /usr/local/bin/geth-hdwallet
+
 COPY config-example /config
 COPY defaults /defaults
 COPY entrypoint.sh .
diff --git a/apps/el-gen/generate_genesis.sh b/apps/el-gen/generate_genesis.sh
new file mode 100644
index 0000000..c21fa2c
--- /dev/null
+++ b/apps/el-gen/generate_genesis.sh
@@ -0,0 +1,373 @@
+#!/bin/bash
+
+generate_genesis() {
+    set +x
+    export CHAIN_ID_HEX="0x$(printf "%x" $CHAIN_ID)"
+    export GENESIS_TIMESTAMP_HEX="0x$(printf "%x" $GENESIS_TIMESTAMP)"
+    export GENESIS_GASLIMIT_HEX="0x$(printf "%x" $GENESIS_GASLIMIT)"
+
+    out_dir=$1
+    tmp_dir=$(mktemp -d -t ci-XXXXXXXXXX)
+
+    is_shadowfork="1"
+    has_fork="0"
+
+    # has_fork tracks the fork version of the input genesis
+    # 0 - phase0
+    # 1 - altair
+    # 2 - bellatrix / merge
+    # 3 - capella / shanghai
+    # 4 - deneb / cancun
+    # 5 - electra / prague
+    # 6 - fulu / osaka
+
+    if [ "$CHAIN_ID" == "1" ]; then
+        # mainnet shadowfork
+        has_fork="4" # deneb
+        cp /apps/el-gen/mainnet/genesis.json $tmp_dir/genesis.json
+        cp /apps/el-gen/mainnet/chainspec.json $tmp_dir/chainspec.json
+        cp /apps/el-gen/mainnet/besu_genesis.json $tmp_dir/besu.json
+    elif [ "$CHAIN_ID" == "11155111" ]; then
+        # sepolia shadowfork
+        has_fork="4" # deneb
+        cp /apps/el-gen/sepolia/genesis.json $tmp_dir/genesis.json
+        cp /apps/el-gen/sepolia/chainspec.json $tmp_dir/chainspec.json
+        cp /apps/el-gen/sepolia/besu_genesis.json $tmp_dir/besu.json
+    elif [ "$CHAIN_ID" == "17000" ]; then
+        # holesky shadowfork
+        has_fork="4" # deneb
+        cp /apps/el-gen/holesky/genesis.json $tmp_dir/genesis.json
+        cp /apps/el-gen/holesky/chainspec.json $tmp_dir/chainspec.json
+        cp /apps/el-gen/holesky/besu_genesis.json $tmp_dir/besu.json
+    else
+        # Generate base genesis.json, chainspec.json and besu.json
+        envsubst < /apps/el-gen/tpl-genesis.json   > $tmp_dir/genesis.json
+        envsubst < /apps/el-gen/tpl-chainspec.json > $tmp_dir/chainspec.json
+        envsubst < /apps/el-gen/tpl-besu.json      > $tmp_dir/besu.json
+        is_shadowfork="0"
+        has_fork="0"
+    fi
+
+    # Add additional fork properties
+    [ $has_fork -lt 2 ] && genesis_add_bellatrix $tmp_dir
+    [ $has_fork -lt 3 ] && [ ! "$CAPELLA_FORK_EPOCH"   == "18446744073709551615" ] && genesis_add_capella $tmp_dir
+    [ $has_fork -lt 4 ] && [ ! "$DENEB_FORK_EPOCH"     == "18446744073709551615" ] && genesis_add_deneb $tmp_dir
+    [ $has_fork -lt 5 ] && [ ! "$ELECTRA_FORK_EPOCH"   == "18446744073709551615" ] && genesis_add_electra $tmp_dir
+    [ $has_fork -lt 6 ] && [ ! "$FULU_FORK_EPOCH"      == "18446744073709551615" ] && genesis_add_fulu $tmp_dir
+
+    if [ "$is_shadowfork" == "0" ]; then
+        # Initialize allocations with precompiles
+        echo "Adding precompile allocations..."
+        cat /apps/el-gen/precompile-allocs.yaml | yq -c > $tmp_dir/allocations.json
+
+        # Add system contracts
+        genesis_add_system_contracts $tmp_dir
+
+        # Build complete allocations object before applying
+        if [ -f /config/el/genesis-config.yaml ]; then
+            envsubst < /config/el/genesis-config.yaml | yq -c > $tmp_dir/el-genesis-config.json
+
+            el_mnemonic=$(jq -r '.mnemonic // env.EL_AND_CL_MNEMONIC' $tmp_dir/el-genesis-config.json)
+
+            # Process all premine wallets in one pass
+            echo "Adding premine wallets from mnemonic..."
+            jq -c '.el_premine | to_entries[]' $tmp_dir/el-genesis-config.json | while read premine; do
+                path=$(echo $premine | jq -r '.key')
+                address=$(geth-hdwallet -mnemonic "$el_mnemonic" -path "$path" | grep "public address:" | awk '{print $3}')
+                echo "  adding allocation for $address"
+                echo "$premine" | jq -c '.value |= gsub(" *ETH"; "000000000000000000") | {"'"$address"'":{"balance":.value}}' >> $tmp_dir/allocations.json
+            done
+
+            # Process static premine addresses
+            echo "Adding static premine wallets..."
+            cat $tmp_dir/el-genesis-config.json | jq -c '.el_premine_addrs
+                | with_entries(.value = (if (.value|type) == "string" then {"balance": .value} else .value end))
+                | with_entries(.value.balance |= gsub(" *ETH"; "000000000000000000"))
+            ' >> $tmp_dir/allocations.json
+
+            # Process additional contracts
+            additional_contracts=$(cat $tmp_dir/el-genesis-config.json | jq -cr '.additional_preloaded_contracts')
+            if ! [[ "$(echo "$additional_contracts" | sed -e 's/^[[:space:]]*//')" == {* ]]; then
+                echo "Additional contracts file: $additional_contracts"
+                if [ -f "$additional_contracts" ]; then
+                    additional_contracts=$(cat $additional_contracts)
+                else
+                    additional_contracts="{}"
+                fi
+            fi
+
+            # Add additional contracts to allocations
+            echo "Adding additional contracts..."
+            echo "$additional_contracts" | jq -c 'with_entries(.value.balance |= gsub(" *ETH"; "000000000000000000"))' >> $tmp_dir/allocations.json
+        fi
+
+        # Apply combined allocations in one shot
+        echo "Applying allocations to genesis files..."
+        allocations=$(jq -s 'reduce .[] as $item ({}; . * $item)' $tmp_dir/allocations.json)
+        genesis_add_json $tmp_dir/genesis.json '.alloc += '"$allocations"
+        genesis_add_json $tmp_dir/chainspec.json '.accounts += '"$allocations"
+        genesis_add_json $tmp_dir/besu.json '.alloc += '"$allocations"
+    fi
+
+    cat $tmp_dir/genesis.json | jq > $out_dir/genesis.json
+    cat $tmp_dir/chainspec.json | jq > $out_dir/chainspec.json
+    cat $tmp_dir/besu.json | jq > $out_dir/besu.json
+    rm -rf $tmp_dir
+}
+
+genesis_get_activation_time() {
+    if [ "$1" == "0" ]; then
+        echo "0"
+    else
+        if [ "$PRESET_BASE" == "minimal" ]; then
+            slots_per_epoch=8
+        else
+            slots_per_epoch=32
+        fi
+        epoch_delay=$(( $SLOT_DURATION_IN_SECONDS * $slots_per_epoch * $1 ))
+        echo $(( $GENESIS_TIMESTAMP + $GENESIS_DELAY + $epoch_delay ))
+    fi
+}
+
+genesis_add_json() {
+    file=$1
+    data=$2
+
+    jq -c "$data" "$file" > "$file.out"
+    mv "$file.out" "$file"
+}
+
+genesis_add_allocation() {
+    tmp_dir=$1
+    address=$2
+    allocation=$3
+
+    echo "  adding allocation for $address"
+    echo "$allocation" | jq -c '.balance |= gsub(" *ETH"; "000000000000000000") | {("'"$address"'"): .}' >> $tmp_dir/allocations.json
+}
+
+genesis_add_system_contracts() {
+    tmp_dir=$1
+    system_contracts=$(cat /apps/el-gen/system-contracts.yaml | yq -c)
+
+    echo "Adding system contracts"
+
+    # add deposit contract
+    echo -e "  genesis contract:\t$DEPOSIT_CONTRACT_ADDRESS"
+    genesis_add_allocation $tmp_dir "$DEPOSIT_CONTRACT_ADDRESS" $(echo "$system_contracts" | jq -c '.deposit')
+
+    if [ ! "$DENEB_FORK_EPOCH" == "18446744073709551615" ]; then
+        # EIP-4788: Beacon block root in the EVM
+        target_address=$(echo "$system_contracts" | jq -r '.eip4788_address')
+        echo -e "  EIP-4788 contract:\t$target_address"
+        genesis_add_allocation $tmp_dir $target_address $(echo "$system_contracts" | jq -c '.eip4788')
+    fi
+
+    if [ ! "$ELECTRA_FORK_EPOCH" == "18446744073709551615" ]; then
+        # EIP-2935: Serve historical block hashes from state
+        target_address=$(echo "$system_contracts" | jq -r '.eip2935_address')
+        echo -e "  EIP-2935 contract:\t$target_address"
+        genesis_add_allocation $tmp_dir $target_address $(echo "$system_contracts" | jq -c '.eip2935')
+
+        # EIP-7002: Execution layer triggerable withdrawals
+        target_address=$(echo "$system_contracts" | jq -r '.eip7002_address')
+        echo -e "  EIP-7002 contract:\t$target_address"
+        genesis_add_allocation $tmp_dir $target_address $(echo "$system_contracts" | jq -c '.eip7002')
+
+        # EIP-7251: Increase the MAX_EFFECTIVE_BALANCE
+        target_address=$(echo "$system_contracts" | jq -r '.eip7251_address')
+        echo -e "  EIP-7251 contract:\t$target_address"
+        genesis_add_allocation $tmp_dir $target_address $(echo "$system_contracts" | jq -c '.eip7251')
+    fi
+}
+
+genesis_add_bellatrix() {
+    tmp_dir=$1
+    echo "Adding bellatrix genesis properties"
+
+    # genesis.json
+    genesis_add_json $tmp_dir/genesis.json '.config += {
+        "mergeNetsplitBlock": 0,
+        "terminalTotalDifficulty": 0,
+        "terminalTotalDifficultyPassed": true
+    }'
+
+    # chainspec.json
+    genesis_add_json $tmp_dir/chainspec.json '.params += {
+        "mergeForkIdTransition": "0x0",
+        "terminalTotalDifficulty": "0x0"
+    }'
+
+    # besu.json
+    genesis_add_json $tmp_dir/besu.json '.config += {
+        "preMergeForkBlock": 0,
+        "terminalTotalDifficulty": 0,
+        "ethash": {}
+    }'
+}
+
+# add capella fork properties
+genesis_add_capella() {
+    tmp_dir=$1
+    echo "Adding capella genesis properties"
+    shanghai_time=$(genesis_get_activation_time $CAPELLA_FORK_EPOCH)
+    shanghai_time_hex="0x$(printf "%x" $shanghai_time)"
+
+    # genesis.json
+    genesis_add_json $tmp_dir/genesis.json '.config += {
+        "shanghaiTime": '"$shanghai_time"'
+    }'
+
+    # chainspec.json
+    genesis_add_json $tmp_dir/chainspec.json '.params += {
+        "eip4895TransitionTimestamp": "'$shanghai_time_hex'",
+        "eip3855TransitionTimestamp": "'$shanghai_time_hex'",
+        "eip3651TransitionTimestamp": "'$shanghai_time_hex'",
+        "eip3860TransitionTimestamp": "'$shanghai_time_hex'"
+    }'
+
+    # besu.json
+    genesis_add_json $tmp_dir/besu.json '.config += {
+        "shanghaiTime": '"$shanghai_time"'
+    }'
+}
+
+# add deneb fork properties
+genesis_add_deneb() {
+    tmp_dir=$1
+    echo "Adding deneb genesis properties"
+    cancun_time=$(genesis_get_activation_time $DENEB_FORK_EPOCH)
+    cancun_time_hex="0x$(printf "%x" $cancun_time)"
+    target_blobs_per_block_cancun=3
+    max_blobs_per_block_cancun=6
+
+    # genesis.json
+    genesis_add_json $tmp_dir/genesis.json '.config += {
+        "cancunTime": '"$cancun_time"',
+        "blobSchedule": {}
+    }'
+    genesis_add_json $tmp_dir/genesis.json '.config.blobSchedule += {
+        "cancun": {
+            "target": '"$target_blobs_per_block_cancun"',
+            "max": '"$max_blobs_per_block_cancun"'
+        }
+    }'
+
+    # chainspec.json
+    genesis_add_json $tmp_dir/chainspec.json '.params += {
+        "eip4844TransitionTimestamp": "'$cancun_time_hex'",
+        "eip4788TransitionTimestamp": "'$cancun_time_hex'",
+        "eip1153TransitionTimestamp": "'$cancun_time_hex'",
+        "eip5656TransitionTimestamp": "'$cancun_time_hex'",
+        "eip6780TransitionTimestamp": "'$cancun_time_hex'",
+        "blobSchedule": {}
+    }'
+    genesis_add_json $tmp_dir/chainspec.json '.params.blobSchedule += {
+        "cancun": {
+            "target": '"$target_blobs_per_block_cancun"',
+            "max": '"$max_blobs_per_block_cancun"'
+        }
+    }'
+
+    # besu.json
+    genesis_add_json $tmp_dir/besu.json '.config += {
+        "cancunTime": '"$cancun_time"',
+        "blobSchedule": {}
+    }'
+    genesis_add_json $tmp_dir/besu.json '.config.blobSchedule += {
+        "cancun": {
+            "target": '"$target_blobs_per_block_cancun"',
+            "max": '"$max_blobs_per_block_cancun"'
+        }
+    }'
+}
+
+# add electra fork properties
+genesis_add_electra() {
+    tmp_dir=$1
+    echo "Adding electra genesis properties"
+    prague_time=$(genesis_get_activation_time $ELECTRA_FORK_EPOCH)
+    prague_time_hex="0x$(printf "%x" $prague_time)"
+
+    # genesis.json
+    genesis_add_json $tmp_dir/genesis.json '.config += {
+        "depositContractAddress": "'"$DEPOSIT_CONTRACT_ADDRESS"'",
+        "pragueTime": '"$prague_time"'
+    }'
+    genesis_add_json $tmp_dir/genesis.json '.config.blobSchedule += {
+        "prague": {
+            "target": '"$TARGET_BLOBS_PER_BLOCK_ELECTRA"',
+            "max": '"$MAX_BLOBS_PER_BLOCK_ELECTRA"'
+        }
+    }'
+
+    # chainspec.json
+    genesis_add_json $tmp_dir/chainspec.json '.params += {
+        "depositContractAddress": "'"$DEPOSIT_CONTRACT_ADDRESS"'",
+        "eip2537TransitionTimestamp": "'$prague_time_hex'",
+        "eip2935TransitionTimestamp": "'$prague_time_hex'",
+        "eip6110TransitionTimestamp": "'$prague_time_hex'",
+        "eip7002TransitionTimestamp": "'$prague_time_hex'",
+        "eip7251TransitionTimestamp": "'$prague_time_hex'",
+        "eip7702TransitionTimestamp": "'$prague_time_hex'"
+    }'
+    genesis_add_json $tmp_dir/chainspec.json '.config.blobSchedule += {
+        "prague": {
+            "target": '"$TARGET_BLOBS_PER_BLOCK_ELECTRA"',
+            "max": '"$MAX_BLOBS_PER_BLOCK_ELECTRA"'
+        }
+    }'
+
+    # besu.json
+    genesis_add_json $tmp_dir/besu.json '.config += {
+        "depositContractAddress": "'"$DEPOSIT_CONTRACT_ADDRESS"'",
+        "pragueTime": '"$prague_time"'
+    }'
+    genesis_add_json $tmp_dir/besu.json '.config.blobSchedule += {
+        "prague": {
+            "target": '"$TARGET_BLOBS_PER_BLOCK_ELECTRA"',
+            "max": '"$MAX_BLOBS_PER_BLOCK_ELECTRA"'
+        }
+    }'
+}
+
+# add fulu fork properties
+genesis_add_fulu() {
+    tmp_dir=$1
+    echo "Adding fulu genesis properties"
+    osaka_time=$(genesis_get_activation_time $FULU_FORK_EPOCH)
+    osaka_time_hex="0x$(printf "%x" $osaka_time)"
+
+    # genesis.json
+    genesis_add_json $tmp_dir/genesis.json '.config += {
+        "osakaTime": '"$osaka_time"'
+    }'
+    genesis_add_json $tmp_dir/genesis.json '.config.blobSchedule += {
+        "osaka": {
+            "target": '"$TARGET_BLOBS_PER_BLOCK_FULU"',
+            "max": '"$MAX_BLOBS_PER_BLOCK_FULU"'
+        }
+    }'
+
+    # chainspec.json
+    genesis_add_json $tmp_dir/chainspec.json '.params += {
+        "eip7692TransitionTimestamp": "'$osaka_time_hex'"
+    }'
+    genesis_add_json $tmp_dir/chainspec.json '.config.blobSchedule += {
+        "osaka": {
+            "target": '"$TARGET_BLOBS_PER_BLOCK_FULU"',
+            "max": '"$MAX_BLOBS_PER_BLOCK_FULU"'
+        }
+    }'
+
+    # besu.json
+    genesis_add_json $tmp_dir/besu.json '.config += {
+        "osakaTime": '"$osaka_time"'
+    }'
+    genesis_add_json $tmp_dir/besu.json '.config.blobSchedule += {
+        "osaka": {
+            "target": '"$TARGET_BLOBS_PER_BLOCK_FULU"',
+            "max": '"$MAX_BLOBS_PER_BLOCK_FULU"'
+        }
+    }'
+}
diff --git a/apps/el-gen/genesis_besu.py b/apps/el-gen/genesis_besu.py
deleted file mode 100644
index a5d0f1d..0000000
--- a/apps/el-gen/genesis_besu.py
+++ /dev/null
@@ -1,248 +0,0 @@
-from web3.auto import w3
-import json
-import ruamel.yaml as yaml
-import sys
-
-w3.eth.account.enable_unaudited_hdwallet_features()
-
-testnet_config_path = "genesis-config.yaml"
-mainnet_config_path = "/apps/el-gen/mainnet/besu_genesis.json"
-sepolia_config_path = "/apps/el-gen/sepolia/besu_genesis.json"
-goerli_config_path = "/apps/el-gen/goerli/besu_genesis.json"
-holesky_config_path = "/apps/el-gen/holesky/besu_genesis.json"
-isNamedTestnet = False
-combined_allocs = {}
-
-if len(sys.argv) > 1:
-    testnet_config_path = sys.argv[1]
-
-with open(testnet_config_path) as stream:
-    data = yaml.safe_load(stream)
-
-if int(data['chain_id']) == 1 or int(data['chain_id']) == 11155111 or int(data['chain_id']) == 17000:
-    isNamedTestnet = True
-
-if int(data['chain_id']) == 1:
-    with open(mainnet_config_path) as m:
-        mainnet_json = json.loads(m.read())
-    out = mainnet_json
-elif int(data['chain_id']) == 11155111:
-    with open(sepolia_config_path) as m:
-        sepolia_json = json.loads(m.read())
-    out = sepolia_json
-elif int(data['chain_id']) == 17000:
-    with open(holesky_config_path) as m:
-        holesky_json = json.loads(m.read())
-    out = holesky_json
-else:
-    out = {
-        "config": {
-            "chainId": int(data['chain_id']),
-            "homesteadBlock":0,
-            "eip150Block":0,
-            "eip155Block":0,
-            "eip158Block":0,
-            "byzantiumBlock":0,
-            "constantinopleBlock":0,
-            "petersburgBlock":0,
-            "istanbulBlock":0,
-            "berlinBlock":0,
-            "londonBlock":0,
-            "preMergeForkBlock":0,
-            "depositContractAddress": data["deposit_contract_address"],
-        },
-        "alloc": {
-            # Allocate 1 wei to all possible pre-compiles.
-            # See https://github.com/ethereum/EIPs/issues/716 "SpuriousDragon RIPEMD bug"
-            # E.g. Rinkeby allocates it like this.
-            # See https://github.com/ethereum/go-ethereum/blob/092856267067dd78b527a773f5b240d5c9f5693a/core/genesis.go#L370
-            **{
-                "0x" + i.to_bytes(length=20, byteorder='big').hex(): {
-                    "balance": "1",
-                } for i in range(256)
-            },
-            # deposit contract
-            data['deposit_contract_address']: {
-                "balance": "0",
-                "code": 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-                    "0x0000000000000000000000000000000000000000000000000000000000000023": "0xdb56114e00fdd4c1f85c892bf35ac9a89289aaecb1ebd0a96cde606a748b5d71",
-                    "0x0000000000000000000000000000000000000000000000000000000000000024": "0xc78009fdf07fc56a11f122370658a353aaa542ed63e44c4bc15ff4cd105ab33c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000025": "0x536d98837f2dd165a55d5eeae91485954472d56f246df256bf3cae19352a123c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000026": "0x9efde052aa15429fae05bad4d0b1d7c64da64d03d7a1854a588c2cb8430c0d30",
-                    "0x0000000000000000000000000000000000000000000000000000000000000027": "0xd88ddfeed400a8755596b21942c1497e114c302e6118290f91e6772976041fa1",
-                    "0x0000000000000000000000000000000000000000000000000000000000000028": "0x87eb0ddba57e35f6d286673802a4af5975e22506c7cf4c64bb6be5ee11527f2c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000029": "0x26846476fd5fc54a5d43385167c95144f2643f533cc85bb9d16b782f8d7db193",
-                    "0x000000000000000000000000000000000000000000000000000000000000002a": "0x506d86582d252405b840018792cad2bf1259f1ef5aa5f887e13cb2f0094f51e1",
-                    "0x000000000000000000000000000000000000000000000000000000000000002b": "0xffff0ad7e659772f9534c195c815efc4014ef1e1daed4404c06385d11192e92b",
-                    "0x000000000000000000000000000000000000000000000000000000000000002c": "0x6cf04127db05441cd833107a52be852868890e4317e6a02ab47683aa75964220",
-                    "0x000000000000000000000000000000000000000000000000000000000000002d": "0xb7d05f875f140027ef5118a2247bbb84ce8f2f0f1123623085daf7960c329f5f",
-                    "0x000000000000000000000000000000000000000000000000000000000000002e": "0xdf6af5f5bbdb6be9ef8aa618e4bf8073960867171e29676f8b284dea6a08a85e",
-                    "0x000000000000000000000000000000000000000000000000000000000000002f": "0xb58d900f5e182e3c50ef74969ea16c7726c549757cc23523c369587da7293784",
-                    "0x0000000000000000000000000000000000000000000000000000000000000030": "0xd49a7502ffcfb0340b1d7885688500ca308161a7f96b62df9d083b71fcc8f2bb",
-                    "0x0000000000000000000000000000000000000000000000000000000000000031": "0x8fe6b1689256c0d385f42f5bbe2027a22c1996e110ba97c171d3e5948de92beb",
-                    "0x0000000000000000000000000000000000000000000000000000000000000032": "0x8d0d63c39ebade8509e0ae3c9c3876fb5fa112be18f905ecacfecb92057603ab",
-                    "0x0000000000000000000000000000000000000000000000000000000000000033": "0x95eec8b2e541cad4e91de38385f2e046619f54496c2382cb6cacd5b98c26f5a4",
-                    "0x0000000000000000000000000000000000000000000000000000000000000034": "0xf893e908917775b62bff23294dbbe3a1cd8e6cc1c35b4801887b646a6f81f17f",
-                    "0x0000000000000000000000000000000000000000000000000000000000000035": "0xcddba7b592e3133393c16194fac7431abf2f5485ed711db282183c819e08ebaa",
-                    "0x0000000000000000000000000000000000000000000000000000000000000036": "0x8a8d7fe3af8caa085a7639a832001457dfb9128a8061142ad0335629ff23ff9c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000037": "0xfeb3c337d7a51a6fbf00b9e34c52e1c9195c969bd4e7a0bfd51d5c5bed9c1167",
-                    "0x0000000000000000000000000000000000000000000000000000000000000038": "0xe71f0aa83cc32edfbefa9f4d3e0174ca85182eec9f3a09f6a6c0df6377a510d7",
-                    "0x0000000000000000000000000000000000000000000000000000000000000039": "0x31206fa80a50bb6abe29085058f16212212a60eec8f049fecb92d8c8e0a84bc0",
-                    "0x000000000000000000000000000000000000000000000000000000000000003a": "0x21352bfecbeddde993839f614c3dac0a3ee37543f9b412b16199dc158e23b544",
-                    "0x000000000000000000000000000000000000000000000000000000000000003b": "0x619e312724bb6d7c3153ed9de791d764a366b389af13c58bf8a8d90481a46765",
-                    "0x000000000000000000000000000000000000000000000000000000000000003c": "0x7cdd2986268250628d0c10e385c58c6191e6fbe05191bcc04f133f2cea72c1c4",
-                    "0x000000000000000000000000000000000000000000000000000000000000003d": "0x848930bd7ba8cac54661072113fb278869e07bb8587f91392933374d017bcbe1",
-                    "0x000000000000000000000000000000000000000000000000000000000000003e": "0x8869ff2c22b28cc10510d9853292803328be4fb0e80495e8bb8d271f5b889636",
-                    "0x000000000000000000000000000000000000000000000000000000000000003f": "0xb5fe28e79f1b850f8658246ce9b6a1e7b49fc06db7143e8fe0b4f2b0c5523a5c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000040": "0x985e929f70af28d0bdd1a90a808f977f597c7c778c489e98d3bd8910d31ac0f7"
-                }
-            },
-            # EIP-4788: Beacon block root in the EVM
-            "0x000F3df6D732807Ef1319fB7B8bB8522d0Beac02": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "0x3373fffffffffffffffffffffffffffffffffffffffe14604d57602036146024575f5ffd5b5f35801560495762001fff810690815414603c575f5ffd5b62001fff01545f5260205ff35b5f5ffd5b62001fff42064281555f359062001fff015500"
-            },
-            # EIP-2935: Serve historical block hashes from state
-            "0x0F792be4B0c0cb4DAE440Ef133E90C0eCD48CCCC": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "0x3373fffffffffffffffffffffffffffffffffffffffe14604657602036036042575f35600143038111604257611fff81430311604257611fff9006545f5260205ff35b5f5ffd5b5f35611fff60014303065500"
-            },
-            # EIP-7002: Execution layer triggerable withdrawals
-            "0x0c15F14308530b7CDB8460094BbB9cC28b9AaaAA": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "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",
-                "storage": {
-                    "0x0000000000000000000000000000000000000000000000000000000000000000": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
-                }
-            },
-            # EIP-7251: Increase the MAX_EFFECTIVE_BALANCE
-            "0x00431F263cE400f4455c2dCf564e53007Ca4bbBb": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "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",
-                "storage": {
-                    "0x0000000000000000000000000000000000000000000000000000000000000000": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
-                }
-            }
-        },
-        "coinbase": "0x0000000000000000000000000000000000000000",
-        "baseFeePerGas": "0x3B9ACA00",
-        "difficulty": "0x0",
-        "extraData": "",
-        "gasLimit": hex(int(data['genesis_gaslimit'] if 'genesis_gaslimit' in data and data['genesis_gaslimit'] is not None else 25000000)),
-        "nonce": "0x1234",
-        "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
-        "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
-        "timestamp": str(data['genesis_timestamp'])
-    }
-
-    for key, value in data['el_premine'].items():
-        acct = w3.eth.account.from_mnemonic(data['mnemonic'], account_path=key, passphrase='')
-        weival = value.replace('ETH', '0' * 18)
-        out["alloc"][acct.address] = {"balance": weival}
-
-    # Some hardcoded addrs
-    def add_alloc_entry(addr, account):
-        # Convert balance format
-        if isinstance(account, dict) and 'balance' in account:
-            balance_value = account['balance'].replace('ETH', '0' * 18)
-        else:
-            # If it's not a dictionary, assume it's a single value for backward compatibility
-            balance_value = account.replace('ETH', '0' * 18)
-
-        # Create alloc dictionary entry
-        alloc_entry = {"balance": balance_value}
-
-        # Optionally add code
-        if 'code' in account:
-            alloc_entry['code'] = account['code']
-
-        # Optionally add storage
-        if 'storage' in account:
-            alloc_entry['storage'] = account['storage']
-
-        # Optionally set nonce
-        if 'nonce' in account:
-            alloc_entry['nonce'] = account['nonce']
-
-        # Optionally set private key
-        if 'secretKey' in account:
-            alloc_entry['secretKey'] = account['secretKey']
-
-        # Add alloc entry to output's alloc field
-        out["alloc"][addr] = alloc_entry
-
-    for addr, account in data['el_premine_addrs'].items():
-        add_alloc_entry(addr, account)
-
-    for addr, account in data['additional_preloaded_contracts'].items():
-        add_alloc_entry(addr, account)
-
-# Add fork timestamps for each fork
-# Altair and Bellatrix have no EL implication in terms of timestamp and hence are not included here
-if 'terminal_total_difficulty' in data and not isNamedTestnet:
-    if data['terminal_total_difficulty'] != 0:
-        out['config']['terminalTotalDifficulty'] = data['terminal_total_difficulty']
-    else:
-        out['config']['terminalTotalDifficulty'] = 0
-
-
-if 'capella_fork_epoch' in data and not isNamedTestnet:
-    if data['capella_fork_epoch'] != 0:
-        out['config']['shanghaiTime'] = \
-            int(data['genesis_timestamp']) + \
-        int(data['genesis_delay']) + \
-            int(data['capella_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-    else:
-        out['config']['shanghaiTime'] = 0
-
-if 'deneb_fork_epoch' in data and not isNamedTestnet:
-    if data['deneb_fork_epoch'] != 0:
-        out['config']['cancunTime'] = \
-        int(data['genesis_timestamp']) + \
-        int(data['genesis_delay']) + \
-            int(data['deneb_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-    else:
-        out['config']['cancunTime'] = 0
-
-    out['config']['blobSchedule'] = {}
-    out['config']['blobSchedule']['cancun'] = {
-        "target": data['target_blobs_per_block_cancun'],
-        "max": data['max_blobs_per_block_cancun']
-    }
-
-if 'electra_fork_epoch' in data:
-    if data['electra_fork_epoch'] != 0:
-        out['config']['pragueTime'] = \
-        int(data['genesis_timestamp']) + \
-        int(data['genesis_delay']) + \
-            int(data['electra_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-    else:
-        out['config']['pragueTime'] = 0
-
-    out['config']['blobSchedule']['prague'] = {
-        "target": data['target_blobs_per_block_prague'],
-        "max": data['max_blobs_per_block_prague']
-    }
-
-if 'fulu_fork_epoch' in data:
-    if data['fulu_fork_epoch'] != 0:
-        out['config']['osakaTime'] =  \
-        int(data['genesis_timestamp']) + \
-        int(data['genesis_delay']) + \
-            int(data['fulu_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-    else:
-        out['config']['osakaTime'] = 0
-
-    out['config']['blobSchedule']['osaka'] = {
-        "target": data['target_blobs_per_block_osaka'],
-        "max": data['max_blobs_per_block_osaka']
-    }
-
-out['config']['ethash'] =  {}
-print(json.dumps(out, indent='  '))
diff --git a/apps/el-gen/genesis_chainspec.py b/apps/el-gen/genesis_chainspec.py
deleted file mode 100644
index afcb747..0000000
--- a/apps/el-gen/genesis_chainspec.py
+++ /dev/null
@@ -1,314 +0,0 @@
-from web3.auto import w3
-import json
-import ruamel.yaml as yaml
-import sys
-
-w3.eth.account.enable_unaudited_hdwallet_features()
-
-testnet_config_path = "genesis-config.yaml"
-mainnet_config_path = "/apps/el-gen/mainnet/chainspec.json"
-sepolia_config_path = "/apps/el-gen/sepolia/chainspec.json"
-goerli_config_path = "/apps/el-gen/goerli/chainspec.json"
-holesky_config_path = "/apps/el-gen/holesky/chainspec.json"
-isNamedTestnet = False
-combined_allocs = {}
-if len(sys.argv) > 1:
-    testnet_config_path = sys.argv[1]
-
-with open(testnet_config_path) as stream:
-    data = yaml.safe_load(stream)
-
-if int(data['chain_id']) == 1 or int(data['chain_id']) == 11155111 or int(data['chain_id']) == 17000:
-    isNamedTestnet = True
-
-if int(data['chain_id']) == 1:
-    with open(mainnet_config_path) as m:
-        mainnet_json = json.loads(m.read())
-    out = mainnet_json
-elif int(data['chain_id']) == 11155111:
-    with open(sepolia_config_path) as m:
-        sepolia_json = json.loads(m.read())
-    out = sepolia_json
-elif int(data['chain_id']) == 17000:
-    with open(holesky_config_path) as m:
-        holesky_json = json.loads(m.read())
-    out = holesky_json
-else:
-    out = {
-        "name": "Testnet",
-        "engine": {},
-        "params": {
-            "gasLimitBoundDivisor": "0x400",
-            "registrar": "0x0000000000000000000000000000000000000000",
-            "accountStartNonce": "0x0",
-            "maximumExtraDataSize": "0xffff",
-            "minGasLimit": "0x1388",
-            "networkID": hex(int(data['chain_id'])),
-            "MergeForkIdTransition": "0x0",
-            "maxCodeSize": "0x6000",
-            "maxCodeSizeTransition": "0x0",
-            "eip150Transition": "0x0",
-            "eip158Transition": "0x0",
-            "eip160Transition": "0x0",
-            "eip161abcTransition": "0x0",
-            "eip161dTransition": "0x0",
-            "eip155Transition": "0x0",
-            "eip140Transition": "0x0",
-            "eip211Transition": "0x0",
-            "eip214Transition": "0x0",
-            "eip658Transition": "0x0",
-            "eip145Transition": "0x0",
-            "eip1014Transition": "0x0",
-            "eip1052Transition": "0x0",
-            "eip1283Transition": "0x0",
-            "eip1283DisableTransition": "0x0",
-            "eip152Transition": "0x0",
-            "eip1108Transition": "0x0",
-            "eip1344Transition": "0x0",
-            "eip1884Transition": "0x0",
-            "eip2028Transition": "0x0",
-            "eip2200Transition": "0x0",
-            "eip2565Transition": "0x0",
-            "eip2929Transition": "0x0",
-            "eip2930Transition": "0x0",
-            "eip1559Transition": "0x0",
-            "eip3198Transition": "0x0",
-            "eip3529Transition": "0x0",
-            "eip3541Transition": "0x0",
-            "depositContractAddress": data["deposit_contract_address"],
-        },
-        "genesis": {
-            "seal": {
-                "ethereum": {
-                    "nonce": "0x1234",
-                    "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
-                }
-            },
-            "difficulty": "0x0",
-            "author": "0x0000000000000000000000000000000000000000",
-            "timestamp": hex(data['genesis_timestamp']),
-            "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
-            "extraData": "",
-            "gasLimit": hex(int(data['genesis_gaslimit'] if 'genesis_gaslimit' in data and data['genesis_gaslimit'] is not None else 25000000))
-        },
-        "accounts": {
-            # Allocate 1 wei to all possible pre-compiles.
-            # See https://github.com/ethereum/EIPs/issues/716 "SpuriousDragon RIPEMD bug"
-            # E.g. Rinkeby allocates it like this.
-            # See https://github.com/ethereum/go-ethereum/blob/092856267067dd78b527a773f5b240d5c9f5693a/core/genesis.go#L370
-            **{
-                "0x" + i.to_bytes(length=20, byteorder='big').hex(): {
-                    "balance": "1",
-                } for i in range(256)
-            },
-            # deposit contract
-            data['deposit_contract_address']: {
-                "balance": "0",
-                "code": 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-                "storage": {
-                    "0x0000000000000000000000000000000000000000000000000000000000000022": "0xf5a5fd42d16a20302798ef6ed309979b43003d2320d9f0e8ea9831a92759fb4b",
-                    "0x0000000000000000000000000000000000000000000000000000000000000023": "0xdb56114e00fdd4c1f85c892bf35ac9a89289aaecb1ebd0a96cde606a748b5d71",
-                    "0x0000000000000000000000000000000000000000000000000000000000000024": "0xc78009fdf07fc56a11f122370658a353aaa542ed63e44c4bc15ff4cd105ab33c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000025": "0x536d98837f2dd165a55d5eeae91485954472d56f246df256bf3cae19352a123c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000026": "0x9efde052aa15429fae05bad4d0b1d7c64da64d03d7a1854a588c2cb8430c0d30",
-                    "0x0000000000000000000000000000000000000000000000000000000000000027": "0xd88ddfeed400a8755596b21942c1497e114c302e6118290f91e6772976041fa1",
-                    "0x0000000000000000000000000000000000000000000000000000000000000028": "0x87eb0ddba57e35f6d286673802a4af5975e22506c7cf4c64bb6be5ee11527f2c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000029": "0x26846476fd5fc54a5d43385167c95144f2643f533cc85bb9d16b782f8d7db193",
-                    "0x000000000000000000000000000000000000000000000000000000000000002a": "0x506d86582d252405b840018792cad2bf1259f1ef5aa5f887e13cb2f0094f51e1",
-                    "0x000000000000000000000000000000000000000000000000000000000000002b": "0xffff0ad7e659772f9534c195c815efc4014ef1e1daed4404c06385d11192e92b",
-                    "0x000000000000000000000000000000000000000000000000000000000000002c": "0x6cf04127db05441cd833107a52be852868890e4317e6a02ab47683aa75964220",
-                    "0x000000000000000000000000000000000000000000000000000000000000002d": "0xb7d05f875f140027ef5118a2247bbb84ce8f2f0f1123623085daf7960c329f5f",
-                    "0x000000000000000000000000000000000000000000000000000000000000002e": "0xdf6af5f5bbdb6be9ef8aa618e4bf8073960867171e29676f8b284dea6a08a85e",
-                    "0x000000000000000000000000000000000000000000000000000000000000002f": "0xb58d900f5e182e3c50ef74969ea16c7726c549757cc23523c369587da7293784",
-                    "0x0000000000000000000000000000000000000000000000000000000000000030": "0xd49a7502ffcfb0340b1d7885688500ca308161a7f96b62df9d083b71fcc8f2bb",
-                    "0x0000000000000000000000000000000000000000000000000000000000000031": "0x8fe6b1689256c0d385f42f5bbe2027a22c1996e110ba97c171d3e5948de92beb",
-                    "0x0000000000000000000000000000000000000000000000000000000000000032": "0x8d0d63c39ebade8509e0ae3c9c3876fb5fa112be18f905ecacfecb92057603ab",
-                    "0x0000000000000000000000000000000000000000000000000000000000000033": "0x95eec8b2e541cad4e91de38385f2e046619f54496c2382cb6cacd5b98c26f5a4",
-                    "0x0000000000000000000000000000000000000000000000000000000000000034": "0xf893e908917775b62bff23294dbbe3a1cd8e6cc1c35b4801887b646a6f81f17f",
-                    "0x0000000000000000000000000000000000000000000000000000000000000035": "0xcddba7b592e3133393c16194fac7431abf2f5485ed711db282183c819e08ebaa",
-                    "0x0000000000000000000000000000000000000000000000000000000000000036": "0x8a8d7fe3af8caa085a7639a832001457dfb9128a8061142ad0335629ff23ff9c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000037": "0xfeb3c337d7a51a6fbf00b9e34c52e1c9195c969bd4e7a0bfd51d5c5bed9c1167",
-                    "0x0000000000000000000000000000000000000000000000000000000000000038": "0xe71f0aa83cc32edfbefa9f4d3e0174ca85182eec9f3a09f6a6c0df6377a510d7",
-                    "0x0000000000000000000000000000000000000000000000000000000000000039": "0x31206fa80a50bb6abe29085058f16212212a60eec8f049fecb92d8c8e0a84bc0",
-                    "0x000000000000000000000000000000000000000000000000000000000000003a": "0x21352bfecbeddde993839f614c3dac0a3ee37543f9b412b16199dc158e23b544",
-                    "0x000000000000000000000000000000000000000000000000000000000000003b": "0x619e312724bb6d7c3153ed9de791d764a366b389af13c58bf8a8d90481a46765",
-                    "0x000000000000000000000000000000000000000000000000000000000000003c": "0x7cdd2986268250628d0c10e385c58c6191e6fbe05191bcc04f133f2cea72c1c4",
-                    "0x000000000000000000000000000000000000000000000000000000000000003d": "0x848930bd7ba8cac54661072113fb278869e07bb8587f91392933374d017bcbe1",
-                    "0x000000000000000000000000000000000000000000000000000000000000003e": "0x8869ff2c22b28cc10510d9853292803328be4fb0e80495e8bb8d271f5b889636",
-                    "0x000000000000000000000000000000000000000000000000000000000000003f": "0xb5fe28e79f1b850f8658246ce9b6a1e7b49fc06db7143e8fe0b4f2b0c5523a5c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000040": "0x985e929f70af28d0bdd1a90a808f977f597c7c778c489e98d3bd8910d31ac0f7"
-                }
-            },
-            # EIP-4788: Beacon block root in the EVM
-            "0x000F3df6D732807Ef1319fB7B8bB8522d0Beac02": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "0x3373fffffffffffffffffffffffffffffffffffffffe14604d57602036146024575f5ffd5b5f35801560495762001fff810690815414603c575f5ffd5b62001fff01545f5260205ff35b5f5ffd5b62001fff42064281555f359062001fff015500"
-            },
-            # EIP-2935: Serve historical block hashes from state
-            "0x0F792be4B0c0cb4DAE440Ef133E90C0eCD48CCCC": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "0x3373fffffffffffffffffffffffffffffffffffffffe14604657602036036042575f35600143038111604257611fff81430311604257611fff9006545f5260205ff35b5f5ffd5b5f35611fff60014303065500"
-            },
-            # EIP-7002: Execution layer triggerable withdrawals
-            "0x0c15F14308530b7CDB8460094BbB9cC28b9AaaAA": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "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",
-                "storage": {
-                    "0x0000000000000000000000000000000000000000000000000000000000000000": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
-                }
-            },
-            # EIP-7251: Increase the MAX_EFFECTIVE_BALANCE
-            "0x00431F263cE400f4455c2dCf564e53007Ca4bbBb": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "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",
-                "storage": {
-                    "0x0000000000000000000000000000000000000000000000000000000000000000": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
-                }
-            }
-        },
-        "nodes": []
-    }
-
-    out["engine"]["Ethash"] =  {}
-
-    for key, value in data['el_premine'].items():
-        acct = w3.eth.account.from_mnemonic(data['mnemonic'], account_path=key, passphrase='')
-        weival = value.replace('ETH', '0' * 18)
-        out["accounts"][acct.address] = {"balance": weival}
-
-    # Some hardcoded addrs
-    def add_alloc_entry(addr, account):
-        # Convert balance format
-        if isinstance(account, dict) and 'balance' in account:
-            balance_value = account['balance'].replace('ETH', '0' * 18)
-        else:
-            # If it's not a dictionary, assume it's a single value for backward compatibility
-            balance_value = account.replace('ETH', '0' * 18)
-
-        # Create alloc dictionary entry
-        alloc_entry = {"balance": balance_value}
-
-        # Optionally add code
-        if 'code' in account:
-            alloc_entry['code'] = account['code']
-
-        # Optionally add storage
-        if 'storage' in account:
-            alloc_entry['storage'] = account['storage']
-
-        # Optionally set nonce
-        if 'nonce' in account:
-            alloc_entry['nonce'] = account['nonce']
-
-        # Optionally set private key
-        if 'secretKey' in account:
-            alloc_entry['secretKey'] = account['secretKey']
-
-        # Add alloc entry to output's alloc field
-        out["accounts"][addr] = alloc_entry
-
-    for addr, account in data['el_premine_addrs'].items():
-        add_alloc_entry(addr, account)
-
-    for addr, account in data['additional_preloaded_contracts'].items():
-        add_alloc_entry(addr, account)
-
-        
-# Terminal total difficulty
-if 'terminal_total_difficulty' in data and not isNamedTestnet:
-    if data['terminal_total_difficulty'] != 0:
-        out['params']['terminalTotalDifficulty'] = hex(data['terminal_total_difficulty'])
-    else:
-        out['params']['terminalTotalDifficulty'] = "0x0"
-# Capella fork
-if 'capella_fork_epoch' in data and not isNamedTestnet:
-    if data['capella_fork_epoch'] != 0:
-        capella_timestamp = hex(
-            int(data['genesis_timestamp']) +
-        int(data['genesis_delay']) +
-        int(data['capella_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-        )
-        out['params']['eip4895TransitionTimestamp'] = capella_timestamp
-        out['params']['eip3651TransitionTimestamp'] = capella_timestamp
-        out['params']['eip3855TransitionTimestamp'] = capella_timestamp
-        out['params']['eip3860TransitionTimestamp'] = capella_timestamp
-    else:
-        out['params']['eip4895TransitionTimestamp'] = 0
-        out['params']['eip3651TransitionTimestamp'] = 0
-        out['params']['eip3855TransitionTimestamp'] = 0
-        out['params']['eip3860TransitionTimestamp'] = 0
-
-# Dencun fork
-if 'deneb_fork_epoch' in data and not isNamedTestnet:
-    if data['deneb_fork_epoch'] != 0:
-        deneb_timestamp = hex(
-        int(data['genesis_timestamp']) +
-        int(data['genesis_delay']) +
-        int(data['deneb_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-        )
-        out['params']['eip4844TransitionTimestamp'] = deneb_timestamp
-        out['params']['eip4788TransitionTimestamp'] = deneb_timestamp
-        out['params']['eip1153TransitionTimestamp'] = deneb_timestamp
-        out['params']['eip5656TransitionTimestamp'] = deneb_timestamp
-        out['params']['eip6780TransitionTimestamp'] = deneb_timestamp
-    else:
-        out['params']['eip4844TransitionTimestamp'] = 0
-        out['params']['eip4788TransitionTimestamp'] = 0
-        out['params']['eip1153TransitionTimestamp'] = 0
-        out['params']['eip5656TransitionTimestamp'] = 0
-        out['params']['eip6780TransitionTimestamp'] = 0
-
-    # add the cancun blobSchedule
-    out['params']['blobSchedule'] = {}
-    out['params']['blobSchedule']['cancun'] = {
-            "target": data['target_blobs_per_block_cancun'],
-            "max": data['max_blobs_per_block_cancun']
-        }
-
-if 'electra_fork_epoch' in data:
-    if data['electra_fork_epoch'] != 0:
-        electra_timestamp = hex(
-            int(data['genesis_timestamp']) +
-            int(data['genesis_delay']) +
-            int(data['electra_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-            )
-        out['params']['eip2537TransitionTimestamp']= electra_timestamp
-        out['params']['eip2935TransitionTimestamp']= electra_timestamp
-        out['params']['eip6110TransitionTimestamp']= electra_timestamp
-        out['params']['eip7002TransitionTimestamp']= electra_timestamp
-        out['params']['eip7251TransitionTimestamp']= electra_timestamp
-        out['params']['eip7702TransitionTimestamp']= electra_timestamp
-    else:
-        out['params']['eip2537TransitionTimestamp']= 0
-        out['params']['eip2935TransitionTimestamp']= 0
-        out['params']['eip6110TransitionTimestamp']= 0
-        out['params']['eip7002TransitionTimestamp']= 0
-        out['params']['eip7251TransitionTimestamp']= 0
-        out['params']['eip7702TransitionTimestamp']= 0
-
-    # add the prague blobSchedule
-    out['params']['blobSchedule']['prague'] = {
-        "target": data['target_blobs_per_block_prague'],
-        "max": data['max_blobs_per_block_prague']
-    }
-
-if 'fulu_fork_epoch' in data:
-    if data['fulu_fork_epoch'] != 0:
-        out['params']['eip7692TransitionTimestamp'] = hex(
-            int(data['genesis_timestamp']) + \
-        int(data['genesis_delay']) + \
-            int(data['fulu_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-        )
-    else:
-        out['params']['eip7692TransitionTimestamp'] = 0
-
-    # add the osaka blobSchedule
-    out['params']['blobSchedule']['osaka'] = {
-        "target": data['target_blobs_per_block_osaka'],
-        "max": data['max_blobs_per_block_osaka']
-    }
-print(json.dumps(out, indent='  '))
diff --git a/apps/el-gen/genesis_geth.py b/apps/el-gen/genesis_geth.py
deleted file mode 100644
index 4cda13f..0000000
--- a/apps/el-gen/genesis_geth.py
+++ /dev/null
@@ -1,246 +0,0 @@
-from web3.auto import w3
-import json
-import ruamel.yaml as yaml
-import sys
-
-w3.eth.account.enable_unaudited_hdwallet_features()
-
-testnet_config_path = "genesis-config.yaml"
-mainnet_config_path = "/apps/el-gen/mainnet/genesis.json"
-sepolia_config_path = "/apps/el-gen/sepolia/genesis.json"
-goerli_config_path = "/apps/el-gen/goerli/genesis.json"
-holesky_config_path = "/apps/el-gen/holesky/genesis.json"
-isNamedTestnet = False
-combined_allocs = {}
-if len(sys.argv) > 1:
-    testnet_config_path = sys.argv[1]
-
-with open(testnet_config_path) as stream:
-    data = yaml.safe_load(stream)
-
-if int(data['chain_id']) == 1 or int(data['chain_id']) == 11155111 or int(data['chain_id']) == 17000:
-    isNamedTestnet = True
-
-if int(data['chain_id']) == 1:
-    with open(mainnet_config_path) as m:
-        mainnet_json = json.loads(m.read())
-    out = mainnet_json
-elif int(data['chain_id']) == 11155111:
-    with open(sepolia_config_path) as m:
-        sepolia_json = json.loads(m.read())
-    out = sepolia_json
-elif int(data['chain_id']) == 17000:
-    with open(holesky_config_path) as m:
-        holesky_json = json.loads(m.read())
-    out = holesky_json
-else:
-    out = {
-        "config": {
-            "chainId": int(data['chain_id']),
-            "homesteadBlock":0,
-            "eip150Block":0,
-            "eip155Block":0,
-            "eip158Block":0,
-            "byzantiumBlock":0,
-            "constantinopleBlock":0,
-            "petersburgBlock":0,
-            "istanbulBlock":0,
-            "berlinBlock":0,
-            "londonBlock":0,
-            "mergeNetsplitBlock":0,
-            "depositContractAddress": data["deposit_contract_address"],
-        },
-        "alloc": {
-            # Allocate 1 wei to all possible pre-compiles.
-            # See https://github.com/ethereum/EIPs/issues/716 "SpuriousDragon RIPEMD bug"
-            # E.g. Rinkeby allocates it like this.
-            # See https://github.com/ethereum/go-ethereum/blob/092856267067dd78b527a773f5b240d5c9f5693a/core/genesis.go#L370
-            **{
-                "0x" + i.to_bytes(length=20, byteorder='big').hex(): {
-                    "balance": "1",
-                } for i in range(256)
-            },
-            # deposit contract
-            data['deposit_contract_address']: {
-                "balance": "0",
-                "code": 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-                "storage": {
-                    "0x0000000000000000000000000000000000000000000000000000000000000022": "0xf5a5fd42d16a20302798ef6ed309979b43003d2320d9f0e8ea9831a92759fb4b",
-                    "0x0000000000000000000000000000000000000000000000000000000000000023": "0xdb56114e00fdd4c1f85c892bf35ac9a89289aaecb1ebd0a96cde606a748b5d71",
-                    "0x0000000000000000000000000000000000000000000000000000000000000024": "0xc78009fdf07fc56a11f122370658a353aaa542ed63e44c4bc15ff4cd105ab33c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000025": "0x536d98837f2dd165a55d5eeae91485954472d56f246df256bf3cae19352a123c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000026": "0x9efde052aa15429fae05bad4d0b1d7c64da64d03d7a1854a588c2cb8430c0d30",
-                    "0x0000000000000000000000000000000000000000000000000000000000000027": "0xd88ddfeed400a8755596b21942c1497e114c302e6118290f91e6772976041fa1",
-                    "0x0000000000000000000000000000000000000000000000000000000000000028": "0x87eb0ddba57e35f6d286673802a4af5975e22506c7cf4c64bb6be5ee11527f2c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000029": "0x26846476fd5fc54a5d43385167c95144f2643f533cc85bb9d16b782f8d7db193",
-                    "0x000000000000000000000000000000000000000000000000000000000000002a": "0x506d86582d252405b840018792cad2bf1259f1ef5aa5f887e13cb2f0094f51e1",
-                    "0x000000000000000000000000000000000000000000000000000000000000002b": "0xffff0ad7e659772f9534c195c815efc4014ef1e1daed4404c06385d11192e92b",
-                    "0x000000000000000000000000000000000000000000000000000000000000002c": "0x6cf04127db05441cd833107a52be852868890e4317e6a02ab47683aa75964220",
-                    "0x000000000000000000000000000000000000000000000000000000000000002d": "0xb7d05f875f140027ef5118a2247bbb84ce8f2f0f1123623085daf7960c329f5f",
-                    "0x000000000000000000000000000000000000000000000000000000000000002e": "0xdf6af5f5bbdb6be9ef8aa618e4bf8073960867171e29676f8b284dea6a08a85e",
-                    "0x000000000000000000000000000000000000000000000000000000000000002f": "0xb58d900f5e182e3c50ef74969ea16c7726c549757cc23523c369587da7293784",
-                    "0x0000000000000000000000000000000000000000000000000000000000000030": "0xd49a7502ffcfb0340b1d7885688500ca308161a7f96b62df9d083b71fcc8f2bb",
-                    "0x0000000000000000000000000000000000000000000000000000000000000031": "0x8fe6b1689256c0d385f42f5bbe2027a22c1996e110ba97c171d3e5948de92beb",
-                    "0x0000000000000000000000000000000000000000000000000000000000000032": "0x8d0d63c39ebade8509e0ae3c9c3876fb5fa112be18f905ecacfecb92057603ab",
-                    "0x0000000000000000000000000000000000000000000000000000000000000033": "0x95eec8b2e541cad4e91de38385f2e046619f54496c2382cb6cacd5b98c26f5a4",
-                    "0x0000000000000000000000000000000000000000000000000000000000000034": "0xf893e908917775b62bff23294dbbe3a1cd8e6cc1c35b4801887b646a6f81f17f",
-                    "0x0000000000000000000000000000000000000000000000000000000000000035": "0xcddba7b592e3133393c16194fac7431abf2f5485ed711db282183c819e08ebaa",
-                    "0x0000000000000000000000000000000000000000000000000000000000000036": "0x8a8d7fe3af8caa085a7639a832001457dfb9128a8061142ad0335629ff23ff9c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000037": "0xfeb3c337d7a51a6fbf00b9e34c52e1c9195c969bd4e7a0bfd51d5c5bed9c1167",
-                    "0x0000000000000000000000000000000000000000000000000000000000000038": "0xe71f0aa83cc32edfbefa9f4d3e0174ca85182eec9f3a09f6a6c0df6377a510d7",
-                    "0x0000000000000000000000000000000000000000000000000000000000000039": "0x31206fa80a50bb6abe29085058f16212212a60eec8f049fecb92d8c8e0a84bc0",
-                    "0x000000000000000000000000000000000000000000000000000000000000003a": "0x21352bfecbeddde993839f614c3dac0a3ee37543f9b412b16199dc158e23b544",
-                    "0x000000000000000000000000000000000000000000000000000000000000003b": "0x619e312724bb6d7c3153ed9de791d764a366b389af13c58bf8a8d90481a46765",
-                    "0x000000000000000000000000000000000000000000000000000000000000003c": "0x7cdd2986268250628d0c10e385c58c6191e6fbe05191bcc04f133f2cea72c1c4",
-                    "0x000000000000000000000000000000000000000000000000000000000000003d": "0x848930bd7ba8cac54661072113fb278869e07bb8587f91392933374d017bcbe1",
-                    "0x000000000000000000000000000000000000000000000000000000000000003e": "0x8869ff2c22b28cc10510d9853292803328be4fb0e80495e8bb8d271f5b889636",
-                    "0x000000000000000000000000000000000000000000000000000000000000003f": "0xb5fe28e79f1b850f8658246ce9b6a1e7b49fc06db7143e8fe0b4f2b0c5523a5c",
-                    "0x0000000000000000000000000000000000000000000000000000000000000040": "0x985e929f70af28d0bdd1a90a808f977f597c7c778c489e98d3bd8910d31ac0f7"
-                }
-            },
-            # EIP-4788: Beacon block root in the EVM
-            "0x000F3df6D732807Ef1319fB7B8bB8522d0Beac02": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "0x3373fffffffffffffffffffffffffffffffffffffffe14604d57602036146024575f5ffd5b5f35801560495762001fff810690815414603c575f5ffd5b62001fff01545f5260205ff35b5f5ffd5b62001fff42064281555f359062001fff015500"
-            },
-            # EIP-2935: Serve historical block hashes from state
-            "0x0F792be4B0c0cb4DAE440Ef133E90C0eCD48CCCC": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "0x3373fffffffffffffffffffffffffffffffffffffffe14604657602036036042575f35600143038111604257611fff81430311604257611fff9006545f5260205ff35b5f5ffd5b5f35611fff60014303065500"
-            },
-            # EIP-7002: Execution layer triggerable withdrawals
-            "0x0c15F14308530b7CDB8460094BbB9cC28b9AaaAA": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "0x3373fffffffffffffffffffffffffffffffffffffffe1460cb5760115f54807fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff146101f457600182026001905f5b5f82111560685781019083028483029004916001019190604d565b909390049250505036603814608857366101f457346101f4575f5260205ff35b34106101f457600154600101600155600354806003026004013381556001015f35815560010160203590553360601b5f5260385f601437604c5fa0600101600355005b6003546002548082038060101160df575060105b5f5b8181146101835782810160030260040181604c02815460601b8152601401816001015481526020019060020154807fffffffffffffffffffffffffffffffff00000000000000000000000000000000168252906010019060401c908160381c81600701538160301c81600601538160281c81600501538160201c81600401538160181c81600301538160101c81600201538160081c81600101535360010160e1565b910180921461019557906002556101a0565b90505f6002555f6003555b5f54807fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff14156101cd57505f5b6001546002828201116101e25750505f6101e8565b01600290035b5f555f600155604c025ff35b5f5ffd",
-                "storage": {
-                    "0x0000000000000000000000000000000000000000000000000000000000000000": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
-                }
-            },
-            # EIP-7251: Increase the MAX_EFFECTIVE_BALANCE
-            "0x00431F263cE400f4455c2dCf564e53007Ca4bbBb": {
-                "balance": "0",
-                "nonce": "1",
-                "code": "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",
-                "storage": {
-                    "0x0000000000000000000000000000000000000000000000000000000000000000": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
-                }
-            }
-        },
-        "coinbase": "0x0000000000000000000000000000000000000000",
-        "difficulty": "0x0",
-        "extraData": "",
-        "gasLimit": hex(int(data['genesis_gaslimit'] if 'genesis_gaslimit' in data and data['genesis_gaslimit'] is not None else 25000000)),
-        "nonce": "0x1234",
-        "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
-        "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
-        "timestamp": str(data['genesis_timestamp'])
-    }
-
-    for key, value in data['el_premine'].items():
-        acct = w3.eth.account.from_mnemonic(data['mnemonic'], account_path=key, passphrase='')
-        weival = value.replace('ETH', '0' * 18)
-        out["alloc"][acct.address] = {"balance": weival}
-
-    # Some hardcoded addrs
-    def add_alloc_entry(addr, account):
-        # Convert balance format
-        if isinstance(account, dict) and 'balance' in account:
-            balance_value = account['balance'].replace('ETH', '0' * 18)
-        else:
-            # If it's not a dictionary, assume it's a single value for backward compatibility
-            balance_value = account.replace('ETH', '0' * 18)
-
-        # Create alloc dictionary entry
-        alloc_entry = {"balance": balance_value}
-
-        # Optionally add code
-        if 'code' in account:
-            alloc_entry['code'] = account['code']
-
-        # Optionally add storage
-        if 'storage' in account:
-            alloc_entry['storage'] = account['storage']
-
-        # Optionally set nonce
-        if 'nonce' in account:
-            alloc_entry['nonce'] = account['nonce']
-
-        # Optionally set private key
-        if 'secretKey' in account:
-            alloc_entry['secretKey'] = account['secretKey']
-
-        # Add alloc entry to output's alloc field
-        out["alloc"][addr] = alloc_entry
-
-    for addr, account in data['el_premine_addrs'].items():
-        add_alloc_entry(addr, account)
-
-    for addr, account in data['additional_preloaded_contracts'].items():
-        add_alloc_entry(addr, account)
-
-# Add fork timestamps for each fork
-# Altair and Bellatrix have no EL implication in terms of timestamp and hence are not included here
-if 'terminal_total_difficulty' in data and not isNamedTestnet:
-    if data['terminal_total_difficulty'] != 0:
-        out['config']['terminalTotalDifficulty'] = data['terminal_total_difficulty']
-    else:
-        out['config']['terminalTotalDifficulty'] = 0
-        out['config']['terminalTotalDifficultyPassed'] = True
-
-if 'capella_fork_epoch' in data and not isNamedTestnet:
-    if data['capella_fork_epoch'] != 0:
-        out['config']['shanghaiTime'] = \
-            int(data['genesis_timestamp']) + \
-            int(data['genesis_delay']) + \
-            int(data['capella_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-    else:
-        out['config']['shanghaiTime'] = 0
-
-
-if 'deneb_fork_epoch' in data and not isNamedTestnet:
-    if data['deneb_fork_epoch'] != 0:
-        out['config']['cancunTime'] = \
-        int(data['genesis_timestamp']) + \
-        int(data['genesis_delay']) + \
-            int(data['deneb_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-    else:
-        out['config']['cancunTime'] = 0
-        
-    out['config']['blobSchedule'] = {}
-    out['config']['blobSchedule']['cancun'] = {
-        "target": data['target_blobs_per_block_cancun'],
-        "max": data['max_blobs_per_block_cancun']
-    }
-
-if 'electra_fork_epoch' in data:
-    if data['electra_fork_epoch'] != 0:
-        out['config']['pragueTime'] = \
-            int(data['genesis_timestamp']) + \
-            int(data['genesis_delay']) + \
-            int(data['electra_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-    else:
-        out['config']['pragueTime'] = 0
-
-    out['config']['blobSchedule']['prague'] = {
-        "target": data['target_blobs_per_block_prague'],
-        "max": data['max_blobs_per_block_prague']
-    }
-
-if 'fulu_fork_epoch' in data:
-    if data['fulu_fork_epoch'] != 0:
-        out['config']['osakaTime'] =  \
-            int(data['genesis_timestamp']) + \
-            int(data['genesis_delay']) + \
-            int(data['fulu_fork_epoch']) * ( 32 if data['preset_base']=='mainnet' else 8 ) * int(data['slot_duration_in_seconds'])
-    else:
-        out['config']['osakaTime'] = 0
-
-    out['config']['blobSchedule']['osaka'] = {
-        "target": data['target_blobs_per_block_osaka'],
-        "max": data['max_blobs_per_block_osaka']
-    }
-
-print(json.dumps(out, indent='  '))
diff --git a/apps/el-gen/precompile-allocs.yaml b/apps/el-gen/precompile-allocs.yaml
new file mode 100644
index 0000000..e5910c3
--- /dev/null
+++ b/apps/el-gen/precompile-allocs.yaml
@@ -0,0 +1,258 @@
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+}
\ No newline at end of file
diff --git a/apps/el-gen/requirements.txt b/apps/el-gen/requirements.txt
deleted file mode 100644
index 68cb490..0000000
--- a/apps/el-gen/requirements.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-ruamel.yaml==0.17.16
-web3>=6.15.0
-setuptools>=69.1.0
-python-dotenv==1.0.1
\ No newline at end of file
diff --git a/apps/el-gen/system-contracts.yaml b/apps/el-gen/system-contracts.yaml
new file mode 100644
index 0000000..ab80494
--- /dev/null
+++ b/apps/el-gen/system-contracts.yaml
@@ -0,0 +1,76 @@
+# deposit contract
+deposit: {
+  "balance": "0",
+  "code": 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+  "storage": {
+    "0x0000000000000000000000000000000000000000000000000000000000000022": "0xf5a5fd42d16a20302798ef6ed309979b43003d2320d9f0e8ea9831a92759fb4b",
+    "0x0000000000000000000000000000000000000000000000000000000000000023": "0xdb56114e00fdd4c1f85c892bf35ac9a89289aaecb1ebd0a96cde606a748b5d71",
+    "0x0000000000000000000000000000000000000000000000000000000000000024": "0xc78009fdf07fc56a11f122370658a353aaa542ed63e44c4bc15ff4cd105ab33c",
+    "0x0000000000000000000000000000000000000000000000000000000000000025": "0x536d98837f2dd165a55d5eeae91485954472d56f246df256bf3cae19352a123c",
+    "0x0000000000000000000000000000000000000000000000000000000000000026": "0x9efde052aa15429fae05bad4d0b1d7c64da64d03d7a1854a588c2cb8430c0d30",
+    "0x0000000000000000000000000000000000000000000000000000000000000027": "0xd88ddfeed400a8755596b21942c1497e114c302e6118290f91e6772976041fa1",
+    "0x0000000000000000000000000000000000000000000000000000000000000028": "0x87eb0ddba57e35f6d286673802a4af5975e22506c7cf4c64bb6be5ee11527f2c",
+    "0x0000000000000000000000000000000000000000000000000000000000000029": "0x26846476fd5fc54a5d43385167c95144f2643f533cc85bb9d16b782f8d7db193",
+    "0x000000000000000000000000000000000000000000000000000000000000002a": "0x506d86582d252405b840018792cad2bf1259f1ef5aa5f887e13cb2f0094f51e1",
+    "0x000000000000000000000000000000000000000000000000000000000000002b": "0xffff0ad7e659772f9534c195c815efc4014ef1e1daed4404c06385d11192e92b",
+    "0x000000000000000000000000000000000000000000000000000000000000002c": "0x6cf04127db05441cd833107a52be852868890e4317e6a02ab47683aa75964220",
+    "0x000000000000000000000000000000000000000000000000000000000000002d": "0xb7d05f875f140027ef5118a2247bbb84ce8f2f0f1123623085daf7960c329f5f",
+    "0x000000000000000000000000000000000000000000000000000000000000002e": "0xdf6af5f5bbdb6be9ef8aa618e4bf8073960867171e29676f8b284dea6a08a85e",
+    "0x000000000000000000000000000000000000000000000000000000000000002f": "0xb58d900f5e182e3c50ef74969ea16c7726c549757cc23523c369587da7293784",
+    "0x0000000000000000000000000000000000000000000000000000000000000030": "0xd49a7502ffcfb0340b1d7885688500ca308161a7f96b62df9d083b71fcc8f2bb",
+    "0x0000000000000000000000000000000000000000000000000000000000000031": "0x8fe6b1689256c0d385f42f5bbe2027a22c1996e110ba97c171d3e5948de92beb",
+    "0x0000000000000000000000000000000000000000000000000000000000000032": "0x8d0d63c39ebade8509e0ae3c9c3876fb5fa112be18f905ecacfecb92057603ab",
+    "0x0000000000000000000000000000000000000000000000000000000000000033": "0x95eec8b2e541cad4e91de38385f2e046619f54496c2382cb6cacd5b98c26f5a4",
+    "0x0000000000000000000000000000000000000000000000000000000000000034": "0xf893e908917775b62bff23294dbbe3a1cd8e6cc1c35b4801887b646a6f81f17f",
+    "0x0000000000000000000000000000000000000000000000000000000000000035": "0xcddba7b592e3133393c16194fac7431abf2f5485ed711db282183c819e08ebaa",
+    "0x0000000000000000000000000000000000000000000000000000000000000036": "0x8a8d7fe3af8caa085a7639a832001457dfb9128a8061142ad0335629ff23ff9c",
+    "0x0000000000000000000000000000000000000000000000000000000000000037": "0xfeb3c337d7a51a6fbf00b9e34c52e1c9195c969bd4e7a0bfd51d5c5bed9c1167",
+    "0x0000000000000000000000000000000000000000000000000000000000000038": "0xe71f0aa83cc32edfbefa9f4d3e0174ca85182eec9f3a09f6a6c0df6377a510d7",
+    "0x0000000000000000000000000000000000000000000000000000000000000039": "0x31206fa80a50bb6abe29085058f16212212a60eec8f049fecb92d8c8e0a84bc0",
+    "0x000000000000000000000000000000000000000000000000000000000000003a": "0x21352bfecbeddde993839f614c3dac0a3ee37543f9b412b16199dc158e23b544",
+    "0x000000000000000000000000000000000000000000000000000000000000003b": "0x619e312724bb6d7c3153ed9de791d764a366b389af13c58bf8a8d90481a46765",
+    "0x000000000000000000000000000000000000000000000000000000000000003c": "0x7cdd2986268250628d0c10e385c58c6191e6fbe05191bcc04f133f2cea72c1c4",
+    "0x000000000000000000000000000000000000000000000000000000000000003d": "0x848930bd7ba8cac54661072113fb278869e07bb8587f91392933374d017bcbe1",
+    "0x000000000000000000000000000000000000000000000000000000000000003e": "0x8869ff2c22b28cc10510d9853292803328be4fb0e80495e8bb8d271f5b889636",
+    "0x000000000000000000000000000000000000000000000000000000000000003f": "0xb5fe28e79f1b850f8658246ce9b6a1e7b49fc06db7143e8fe0b4f2b0c5523a5c",
+    "0x0000000000000000000000000000000000000000000000000000000000000040": "0x985e929f70af28d0bdd1a90a808f977f597c7c778c489e98d3bd8910d31ac0f7"
+  }
+}
+
+# EIP-4788: Beacon block root in the EVM
+eip4788_address: "0x000F3df6D732807Ef1319fB7B8bB8522d0Beac02"
+eip4788: {
+    "balance": "0",
+    "nonce": "1",
+    "code": "0x3373fffffffffffffffffffffffffffffffffffffffe14604d57602036146024575f5ffd5b5f35801560495762001fff810690815414603c575f5ffd5b62001fff01545f5260205ff35b5f5ffd5b62001fff42064281555f359062001fff015500"
+}
+
+# EIP-2935: Serve historical block hashes from state
+eip2935_address: "0x0F792be4B0c0cb4DAE440Ef133E90C0eCD48CCCC"
+eip2935: {
+    "balance": "0",
+    "nonce": "1",
+    "code": "0x3373fffffffffffffffffffffffffffffffffffffffe14604657602036036042575f35600143038111604257611fff81430311604257611fff9006545f5260205ff35b5f5ffd5b5f35611fff60014303065500"
+}
+
+# EIP-7002: Execution layer triggerable withdrawals
+eip7002_address: "0x0c15F14308530b7CDB8460094BbB9cC28b9AaaAA"
+eip7002: {
+    "balance": "0",
+    "nonce": "1",
+    "code": "0x3373fffffffffffffffffffffffffffffffffffffffe1460cb5760115f54807fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff146101f457600182026001905f5b5f82111560685781019083028483029004916001019190604d565b909390049250505036603814608857366101f457346101f4575f5260205ff35b34106101f457600154600101600155600354806003026004013381556001015f35815560010160203590553360601b5f5260385f601437604c5fa0600101600355005b6003546002548082038060101160df575060105b5f5b8181146101835782810160030260040181604c02815460601b8152601401816001015481526020019060020154807fffffffffffffffffffffffffffffffff00000000000000000000000000000000168252906010019060401c908160381c81600701538160301c81600601538160281c81600501538160201c81600401538160181c81600301538160101c81600201538160081c81600101535360010160e1565b910180921461019557906002556101a0565b90505f6002555f6003555b5f54807fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff14156101cd57505f5b6001546002828201116101e25750505f6101e8565b01600290035b5f555f600155604c025ff35b5f5ffd",
+    "storage": {
+        "0x0000000000000000000000000000000000000000000000000000000000000000": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+    }
+}
+
+# EIP-7251: Increase the MAX_EFFECTIVE_BALANCE
+eip7251_address: "0x00431F263cE400f4455c2dCf564e53007Ca4bbBb"
+eip7251: {
+    "balance": "0",
+    "nonce": "1",
+    "code": "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",
+    "storage": {
+        "0x0000000000000000000000000000000000000000000000000000000000000000": "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+    }
+}
\ No newline at end of file
diff --git a/apps/el-gen/tpl-besu.json b/apps/el-gen/tpl-besu.json
new file mode 100644
index 0000000..c169cd2
--- /dev/null
+++ b/apps/el-gen/tpl-besu.json
@@ -0,0 +1,26 @@
+{
+    "config": {
+        "chainId": ${CHAIN_ID},
+        "homesteadBlock": 0,
+        "eip150Block": 0,
+        "eip155Block": 0,
+        "eip158Block": 0,
+        "byzantiumBlock": 0,
+        "constantinopleBlock": 0,
+        "petersburgBlock": 0,
+        "istanbulBlock": 0,
+        "berlinBlock": 0,
+        "londonBlock": 0
+    },
+    "alloc": {},
+    "coinbase": "0x0000000000000000000000000000000000000000",
+    "baseFeePerGas": "0x3B9ACA00",
+    "difficulty": "0x01",
+    "extraData": "",
+    "gasLimit": "${GENESIS_GASLIMIT_HEX}",
+    "nonce": "0x1234",
+    "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+    "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+    "timestamp": "${GENESIS_TIMESTAMP}"
+}
+  
\ No newline at end of file
diff --git a/apps/el-gen/tpl-chainspec.json b/apps/el-gen/tpl-chainspec.json
new file mode 100644
index 0000000..07fd72d
--- /dev/null
+++ b/apps/el-gen/tpl-chainspec.json
@@ -0,0 +1,62 @@
+{
+    "name": "Testnet",
+    "engine": {
+        "Ethash": {}
+    },
+    "params": {
+        "gasLimitBoundDivisor": "0x400",
+        "registrar": "0x0000000000000000000000000000000000000000",
+        "accountStartNonce": "0x0",
+        "maximumExtraDataSize": "0xffff",
+        "minGasLimit": "0x1388",
+        "networkID": "${CHAIN_ID_HEX}",
+        "MergeForkIdTransition": "0x0",
+        "maxCodeSize": "0x6000",
+        "maxCodeSizeTransition": "0x0",
+        "eip150Transition": "0x0",
+        "eip158Transition": "0x0",
+        "eip160Transition": "0x0",
+        "eip161abcTransition": "0x0",
+        "eip161dTransition": "0x0",
+        "eip155Transition": "0x0",
+        "eip140Transition": "0x0",
+        "eip211Transition": "0x0",
+        "eip214Transition": "0x0",
+        "eip658Transition": "0x0",
+        "eip145Transition": "0x0",
+        "eip1014Transition": "0x0",
+        "eip1052Transition": "0x0",
+        "eip1283Transition": "0x0",
+        "eip1283DisableTransition": "0x0",
+        "eip152Transition": "0x0",
+        "eip1108Transition": "0x0",
+        "eip1344Transition": "0x0",
+        "eip1884Transition": "0x0",
+        "eip2028Transition": "0x0",
+        "eip2200Transition": "0x0",
+        "eip2565Transition": "0x0",
+        "eip2929Transition": "0x0",
+        "eip2930Transition": "0x0",
+        "eip1559Transition": "0x0",
+        "eip3198Transition": "0x0",
+        "eip3529Transition": "0x0",
+        "eip3541Transition": "0x0"
+    },
+    "genesis": {
+        "seal": {
+            "ethereum": {
+            "nonce": "0x1234",
+            "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
+            }
+        },
+        "difficulty": "0x01",
+        "author": "0x0000000000000000000000000000000000000000",
+        "timestamp": "${GENESIS_TIMESTAMP_HEX}",
+        "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+        "extraData": "",
+        "gasLimit": "${GENESIS_GASLIMIT_HEX}"
+    },
+    "accounts": {},
+    "nodes": []
+}
+  
\ No newline at end of file
diff --git a/apps/el-gen/tpl-genesis.json b/apps/el-gen/tpl-genesis.json
new file mode 100644
index 0000000..d34535a
--- /dev/null
+++ b/apps/el-gen/tpl-genesis.json
@@ -0,0 +1,24 @@
+{
+    "config": {
+        "chainId": ${CHAIN_ID},
+        "homesteadBlock": 0,
+        "eip150Block": 0,
+        "eip155Block": 0,
+        "eip158Block": 0,
+        "byzantiumBlock": 0,
+        "constantinopleBlock": 0,
+        "petersburgBlock": 0,
+        "istanbulBlock": 0,
+        "berlinBlock": 0,
+        "londonBlock": 0
+    },
+    "alloc": {},
+    "coinbase": "0x0000000000000000000000000000000000000000",
+    "difficulty": "0x01",
+    "extraData": "",
+    "gasLimit": "${GENESIS_GASLIMIT_HEX}",
+    "nonce": "0x1234",
+    "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+    "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+    "timestamp": "${GENESIS_TIMESTAMP}"
+}
diff --git a/apps/envsubst.py b/apps/envsubst.py
deleted file mode 100644
index 6efaae9..0000000
--- a/apps/envsubst.py
+++ /dev/null
@@ -1,56 +0,0 @@
-# This script substitutes environment variables in input lines using values from two .env files.
-import os
-import re
-import sys
-import json
-
-from dotenv import dotenv_values
-
-# Load default and full environment variables from specified files
-# handle the case where the env file is not present
-defaults = dotenv_values(os.environ['DEFAULT_ENV_FILE'])
-
-config_file = os.environ.get('FULL_ENV_FILE')
-config = dotenv_values(config_file) if config_file and os.path.isfile(config_file) else {}
-
-env_vars = os.environ
-
-# These regular expressions are used to identify and match environment variable patterns in the input text.
-# The updated regex matches variables enclosed in either curly braces or square brackets.
-# It captures nested structures as well, allowing for more complex variable patterns.
-bracket_sub_re = re.compile(r'\$\{([A-Z0-9_]+)\}')
-basic_sub_re = re.compile(r'\$([A-Z0-9_]+)')
-
-def sub(m):
-    # Get variable name from match
-    var_name = m.group(1)
-    
-    # Try env vars first, then config, then defaults
-    cfg = env_vars.get(var_name)
-    
-    cfg = config.get(var_name)
-    if cfg is None:
-        cfg = defaults.get(var_name)
-    
-    if cfg is None:
-        raise Exception(f"Missing environment variable: {var_name}")
-    
-    # Handle JSON-like strings by removing trailing single quotes if present
-    cfg = cfg.strip().strip("'")
-    
-    # Try to parse as JSON if it looks like JSON
-    if cfg.startswith('{') and cfg.endswith('}'):
-        try:
-            # Validate it's proper JSON
-            json.loads(cfg)
-            return cfg  # Return the original string if it's valid JSON
-        except json.JSONDecodeError:
-            pass
-            
-    return cfg
-
-# Read from standard input line by line
-for line in sys.stdin:
-    out = bracket_sub_re.sub(sub, line)  # Substitute bracketed variables
-    out = basic_sub_re.sub(sub, out)  # Substitute basic variables
-    sys.stdout.write(out)  # Output the final substituted line
diff --git a/config-example/el/genesis-config.yaml b/config-example/el/genesis-config.yaml
index a6ed797..72b4940 100644
--- a/config-example/el/genesis-config.yaml
+++ b/config-example/el/genesis-config.yaml
@@ -1,6 +1,3 @@
-preset_base: ${PRESET_BASE}
-chain_id: ${CHAIN_ID}
-deposit_contract_address: "${DEPOSIT_CONTRACT_ADDRESS}"
 mnemonic: ${EL_AND_CL_MNEMONIC}
 el_premine:
   "m/44'/60'/0'/0/0": 1000000000ETH
@@ -26,20 +23,3 @@ el_premine:
   "m/44'/60'/0'/0/20": 1000000000ETH
 el_premine_addrs: ${EL_PREMINE_ADDRS}
 additional_preloaded_contracts: ${ADDITIONAL_PRELOADED_CONTRACTS}
-genesis_timestamp: ${GENESIS_TIMESTAMP}
-genesis_delay: ${GENESIS_DELAY}
-genesis_gaslimit: ${GENESIS_GASLIMIT}
-slot_duration_in_seconds: ${SLOT_DURATION_IN_SECONDS}
-terminal_total_difficulty: ${TERMINAL_TOTAL_DIFFICULTY}
-altair_fork_epoch: ${ALTAIR_FORK_EPOCH}
-bellatrix_fork_epoch: ${BELLATRIX_FORK_EPOCH}
-capella_fork_epoch: ${CAPELLA_FORK_EPOCH}
-deneb_fork_epoch: ${DENEB_FORK_EPOCH}
-electra_fork_epoch: ${ELECTRA_FORK_EPOCH}
-fulu_fork_epoch: ${FULU_FORK_EPOCH}
-target_blobs_per_block_cancun: 3
-max_blobs_per_block_cancun: 6
-target_blobs_per_block_prague: ${TARGET_BLOBS_PER_BLOCK_ELECTRA}
-max_blobs_per_block_prague: ${MAX_BLOBS_PER_BLOCK_ELECTRA}
-target_blobs_per_block_osaka: ${TARGET_BLOBS_PER_BLOCK_FULU}
-max_blobs_per_block_osaka: ${MAX_BLOBS_PER_BLOCK_FULU}
diff --git a/defaults/defaults.env b/defaults/defaults.env
index 89d72ef..bb21998 100644
--- a/defaults/defaults.env
+++ b/defaults/defaults.env
@@ -18,9 +18,9 @@ export CAPELLA_FORK_EPOCH="${CAPELLA_FORK_EPOCH:-0}"
 export DENEB_FORK_VERSION="${DENEB_FORK_VERSION:-0x50000000}"
 export DENEB_FORK_EPOCH="${DENEB_FORK_EPOCH:-0}"
 export ELECTRA_FORK_VERSION="${ELECTRA_FORK_VERSION:-0x60000000}"
-export ELECTRA_FORK_EPOCH="${ELECTRA_FORK_EPOCH:-2000}"
+export ELECTRA_FORK_EPOCH="${ELECTRA_FORK_EPOCH:-18446744073709551615}"
 export FULU_FORK_VERSION="${FULU_FORK_VERSION:-0x70000000}"
-export FULU_FORK_EPOCH="${FULU_FORK_EPOCH:-99999}"
+export FULU_FORK_EPOCH="${FULU_FORK_EPOCH:-18446744073709551615}"
 export WITHDRAWAL_TYPE="${WITHDRAWAL_TYPE:-0x00}"
 export WITHDRAWAL_ADDRESS="${WITHDRAWAL_ADDRESS:-0xf97e180c050e5Ab072211Ad2C213Eb5AEE4DF134}"
 export BEACON_STATIC_ENR="${BEACON_STATIC_ENR:-enr:-Iq4QJk4WqRkjsX5c2CXtOra6HnxN-BMXnWhmhEQO9Bn9iABTJGdjUOurM7Btj1ouKaFkvTRoju5vz2GPmVON2dffQKGAX53x8JigmlkgnY0gmlwhLKAlv6Jc2VjcDI1NmsxoQK6S-Cii_KmfFdUJL2TANL3ksaKUnNXvTCv1tLwXs0QgIN1ZHCCIyk}"
diff --git a/entrypoint.sh b/entrypoint.sh
index 51f4f1c..49d21a9 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,21 +1,13 @@
 #!/bin/bash -e
-export DEFAULT_ENV_FILE="/defaults/defaults.env"
+
 # Load the default env vars into the environment
-source $DEFAULT_ENV_FILE
+source /defaults/defaults.env
 
+# Load the env vars entered by the user
 if [ -f /config/values.env ];
 then
-    # Use user provided env vars if it exists
-    export FULL_ENV_FILE="/config/values.env"
-    # Pull these values out of the env file since they can be very large and cause
-    # "arguments list too long" errors in the shell.
-    grep -v "ADDITIONAL_PRELOADED_CONTRACTS" $FULL_ENV_FILE | grep -v "EL_PREMINE_ADDRS" > /tmp/values-short.env
-    # print the value of ADDITIONAL_PRELOADED_CONTRACTS
-else
-    grep -v "ADDITIONAL_PRELOADED_CONTRACTS" $DEFAULT_ENV_FILE | grep -v "EL_PREMINE_ADDRS" > /tmp/values-short.env
+    source /config/values.env
 fi
-# Load the env vars entered by the user without the larger values into the environment
-source /tmp/values-short.env
 
 
 SERVER_ENABLED="${SERVER_ENABLED:-false}"
@@ -23,7 +15,6 @@ SERVER_PORT="${SERVER_PORT:-8000}"
 
 
 gen_shared_files(){
-    . /apps/el-gen/.venv/bin/activate
     set -x
     # Shared files
     mkdir -p /data/metadata
@@ -38,16 +29,11 @@ gen_shared_files(){
 }
 
 gen_el_config(){
-    . /apps/el-gen/.venv/bin/activate
     set -x
     if ! [ -f "/data/metadata/genesis.json" ]; then
-        tmp_dir=$(mktemp -d -t ci-XXXXXXXXXX)
         mkdir -p /data/metadata
-        python3 /apps/envsubst.py < /config/el/genesis-config.yaml > $tmp_dir/genesis-config.yaml
-        cat $tmp_dir/genesis-config.yaml
-        python3 /apps/el-gen/genesis_geth.py $tmp_dir/genesis-config.yaml      > /data/metadata/genesis.json
-        python3 /apps/el-gen/genesis_chainspec.py $tmp_dir/genesis-config.yaml > /data/metadata/chainspec.json
-        python3 /apps/el-gen/genesis_besu.py $tmp_dir/genesis-config.yaml > /data/metadata/besu.json
+        source /apps/el-gen/generate_genesis.sh
+        generate_genesis /data/metadata
     else
         echo "el genesis already exists. skipping generation..."
     fi
@@ -69,7 +55,6 @@ gen_minimal_config() {
 }
 
 gen_cl_config(){
-    . /apps/el-gen/.venv/bin/activate
     set -x
     # Consensus layer: Check if genesis already exists
     if ! [ -f "/data/metadata/genesis.ssz" ]; then
@@ -80,9 +65,9 @@ gen_cl_config(){
         COMMENT="# $HUMAN_READABLE_TIMESTAMP"
         export MAX_REQUEST_BLOB_SIDECARS_ELECTRA=$(($MAX_REQUEST_BLOCKS_DENEB * $MAX_BLOBS_PER_BLOCK_ELECTRA))
         export MAX_REQUEST_BLOB_SIDECARS_FULU=$(($MAX_REQUEST_BLOCKS_DENEB * $MAX_BLOBS_PER_BLOCK_FULU))
-        python3 /apps/envsubst.py < /config/cl/config.yaml > /data/metadata/config.yaml
+        envsubst < /config/cl/config.yaml > /data/metadata/config.yaml
         sed -i "s/#HUMAN_TIME_PLACEHOLDER/$COMMENT/" /data/metadata/config.yaml
-        python3 /apps/envsubst.py < /config/cl/mnemonics.yaml > $tmp_dir/mnemonics.yaml
+        envsubst < /config/cl/mnemonics.yaml > $tmp_dir/mnemonics.yaml
         # Conditionally override values if preset is "minimal"
         if [[ "$PRESET_BASE" == "minimal" ]]; then
           gen_minimal_config
@@ -93,7 +78,7 @@ gen_cl_config(){
         echo $CL_EXEC_BLOCK > /data/metadata/deposit_contract_block.txt
         echo $BEACON_STATIC_ENR > /data/metadata/bootstrap_nodes.txt
         # Envsubst mnemonics
-        python3 /apps/envsubst.py < /config/cl/mnemonics.yaml > $tmp_dir/mnemonics.yaml
+        envsubst < /config/cl/mnemonics.yaml > $tmp_dir/mnemonics.yaml
         # Generate genesis
         if [[ $ALTAIR_FORK_EPOCH != 0 ]]; then
           genesis_args+=(