diff --git a/.github/workflows/aarch64.yml b/.github/workflows/aarch64.yml
index f2ffcb76..4817d35e 100644
--- a/.github/workflows/aarch64.yml
+++ b/.github/workflows/aarch64.yml
@@ -25,13 +25,7 @@ jobs:
         install: |
           export CARGO_TERM_COLOR=always
           export CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse
-          apt-get update && apt-get install -y gdb pip curl wget python3.10-dev clang llvm build-essential
-          wget https://download.visualstudio.microsoft.com/download/pr/092bec24-9cad-421d-9b43-458b3a7549aa/84280dbd1eef750f9ed1625339235c22/dotnet-sdk-8.0.101-linux-arm64.tar.gz
-          mkdir /dotnet && tar zxf dotnet-sdk-8.0.101-linux-arm64.tar.gz -C /dotnet && rm -rf dotnet-sdk-8.0.101-linux-arm64.tar.gz
-          export DOTNET_ROOT=/dotnet
-          export PATH=$PATH:/dotnet
-          export DOTNET_CLI_TELEMETRY_OPTOUT=1
-          export DOTNET_UPGRADEASSISTANT_TELEMETRY_OPTOUT=1
+          apt-get update && apt-get install -y gdb pip curl python3.10-dev clang llvm build-essential
           curl https://sh.rustup.rs -o rustup.sh && chmod +x rustup.sh && \
           ./rustup.sh -y && rm rustup.sh
         run: |
diff --git a/README.md b/README.md
index a9b78106..46332206 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,8 @@ java reports and get report from
 to analyze JavaScript reports and get report from
 [Jazzer.js](https://github.com/CodeIntelligenceTesting/jazzer.js) or
 [jsfuzz](https://github.com/fuzzitdev/jsfuzz).
-Use `casr-csharp` to analyze C# reports.
+Use `casr-csharp` to analyze C# reports and get report from
+[Sharpfuzz](https://github.com/Metalnem/sharpfuzz).
 
 Crash report contains many useful information: severity (like [exploitable](https://github.com/jfoote/exploitable))
 for x86, x86\_64, arm32, aarch64, rv32g, rv64g architectures,
diff --git a/casr/src/bin/casr-afl.rs b/casr/src/bin/casr-afl.rs
index d7bf9f13..36fd80f2 100644
--- a/casr/src/bin/casr-afl.rs
+++ b/casr/src/bin/casr-afl.rs
@@ -15,7 +15,7 @@ use std::path::{Path, PathBuf};
 fn main() -> Result<()> {
     let matches = clap::Command::new("casr-afl")
         .version(clap::crate_version!())
-        .about("Triage crashes found by AFL++ (Sharpfuzz)")
+        .about("Triage crashes found by AFL++/Sharpfuzz")
         .term_width(90)
         .arg(
             Arg::new("log-level")
@@ -151,10 +151,10 @@ fn main() -> Result<()> {
                     cmdline.split_whitespace().map(|s| s.to_string()).collect();
                 if cmd_args[0].ends_with("dotnet") || cmd_args[0].ends_with("mono") {
                     tool = "casr-csharp";
-                    crash_info.casr_tool = util::get_path("casr-csharp")?.clone()
+                    crash_info.casr_tool = util::get_path("casr-csharp")?;
                 } else {
                     tool = "casr-gdb";
-                    crash_info.casr_tool = util::get_path("casr-gdb")?.clone()
+                    crash_info.casr_tool = util::get_path("casr-gdb")?;
                 }
                 crash_info.target_args = cmd_args;
             } else {
@@ -209,6 +209,6 @@ fn main() -> Result<()> {
         args = Vec::new();
     }
 
-    // Generate reports
+    // Generate reports.
     fuzzing_crash_triage_pipeline(&matches, &crashes, &args)
 }
diff --git a/casr/src/bin/casr-csharp.rs b/casr/src/bin/casr-csharp.rs
index 37f0fdbe..11250caf 100644
--- a/casr/src/bin/casr-csharp.rs
+++ b/casr/src/bin/casr-csharp.rs
@@ -83,10 +83,18 @@ fn main() -> Result<()> {
         bail!("Wrong arguments for starting program");
     };
 
+    // Check that args are valid.
+    let Some(pos) = argv
+        .iter()
+        .position(|x| x.ends_with(".dll") || x.ends_with(".exe") || x.ends_with(".csproj"))
+    else {
+        bail!("dotnet/mono target is not specified by .dll, .exe or .csproj executable.");
+    };
+
     // Get stdin for target program.
     let stdin_file = util::stdin_from_matches(&matches)?;
 
-    // Get timeout
+    // Get timeout.
     let timeout = *matches.get_one::<u64>("timeout").unwrap();
 
     // Run program.
@@ -103,16 +111,8 @@ fn main() -> Result<()> {
 
     // Create report.
     let mut report = CrashReport::new();
-    // Set executable path (for C# .dll (dotnet) or .exe (mono) file)
-    if let Some(pos) = argv
-        .iter()
-        .position(|x| x.ends_with(".dll") || x.ends_with(".exe") || x.ends_with(".csproj"))
-    {
-        let Some(classes) = argv.get(pos) else {
-            bail!("dotnet target is not specified by .dll, .exe or .csproj executable.");
-        };
-        report.executable_path = classes.to_string();
-    }
+    // Set executable path (for C# .dll, .csproj (dotnet) or .exe (mono) file).
+    report.executable_path = argv.get(pos).unwrap().to_string();
     report.proc_cmdline = argv.join(" ");
     let _ = report.add_os_info();
     let _ = report.add_proc_environ();
@@ -139,6 +139,6 @@ fn main() -> Result<()> {
         }
     }
 
-    //Output report
+    //Output report.
     util::output_report(&report, &matches, &argv)
 }
diff --git a/casr/tests/tests.rs b/casr/tests/tests.rs
index fba780cc..af83f55b 100644
--- a/casr/tests/tests.rs
+++ b/casr/tests/tests.rs
@@ -5870,7 +5870,6 @@ fn test_casr_afl_csharp() {
         format!("{}:{}", bins.display(), std::env::var("PATH").unwrap()),
     );
 
-    print!("{:?}", output);
     let output = output.output().expect("casr-afl crashed");
 
     assert!(
@@ -5928,14 +5927,8 @@ fn test_casr_afl_csharp() {
     }
 
     assert!(storage.values().all(|x| *x > 1));
-    let _ = Command::new("rm")
-        .args(["-rf", &paths[4]])
-        .output()
-        .expect("failed to remove dir");
-    let _ = Command::new("rm")
-        .args(["-rf", &paths[5]])
-        .output()
-        .expect("failed to remove dir");
+    let _ = fs::remove_dir_all(&paths[4]);
+    let _ = fs::remove_dir_all(&paths[5]);
 }
 
 #[test]
@@ -6054,12 +6047,6 @@ fn test_casr_afl_csharp_ignore_cmd() {
     }
 
     assert!(storage.values().all(|x| *x > 1));
-    let _ = Command::new("rm")
-        .args(["-rf", &paths[4]])
-        .output()
-        .expect("failed to remove dir");
-    let _ = Command::new("rm")
-        .args(["-rf", &paths[5]])
-        .output()
-        .expect("failed to remove dir");
+    let _ = fs::remove_dir_all(&paths[4]);
+    let _ = fs::remove_dir_all(&paths[5]);
 }
diff --git a/docs/usage.md b/docs/usage.md
index ee08cbc3..3fece128 100644
--- a/docs/usage.md
+++ b/docs/usage.md
@@ -10,8 +10,10 @@ java reports and get report from
 to analyze JavaScript reports and get report from
 [Jazzer.js](https://github.com/CodeIntelligenceTesting/jazzer.js) or
 [jsfuzz](https://github.com/fuzzitdev/jsfuzz).
-Use `casr-csharp` to analyze C# reports. `casr-afl` can triage crashes
-found by [AFL++](https://github.com/AFLplusplus/AFLplusplus) (Sharpfuzz).
+Use `casr-csharp` to analyze C# reports and get report from
+[Sharpfuzz](https://github.com/Metalnem/sharpfuzz). `casr-afl` can triage
+crashes found by [AFL++](https://github.com/AFLplusplus/AFLplusplus) and
+AFL-based fuzzer [Sharpfuzz](https://github.com/Metalnem/sharpfuzz).
 `casr-libfuzzer` can triage crashes found by
 [libFuzzer](https://www.llvm.org/docs/LibFuzzer.html) (libFuzzer, go-fuzz,
 Atheris, Jazzer, Jazzer.js, jsfuzz). `casr-dojo` allows to upload new and
@@ -473,8 +475,8 @@ fuzzer [Sharpfuzz](https://github.com/Metalnem/sharpfuzz).
 
 AFL++ Example (Ubuntu 20.04+):
 
-    $ cp -r casr/tests/casr_tests/bin/load_afl /tmp/load_afl
-    $ cp -r casr/tests/casr_tests/bin/load_sydr /tmp/load_sydr
+    $ cp casr/tests/casr_tests/bin/load_afl /tmp/load_afl
+    $ cp casr/tests/casr_tests/bin/load_sydr /tmp/load_sydr
     $ casr-afl -i casr/tests/casr_tests/casrep/afl-out-xlnt -o casr/tests/tmp_tests_casr/casr_afl_out
 
     $ tree tests/tmp_tests_casr/casr_afl_out