diff --git a/base/science-tech-maths/programming/databases/databases.md b/base/science-tech-maths/programming/databases/databases.md
index ece06bb..a7d0392 100644
--- a/base/science-tech-maths/programming/databases/databases.md
+++ b/base/science-tech-maths/programming/databases/databases.md
@@ -40,9 +40,11 @@ psql postgresql://postgres:some_password@postgres_db:5432/my_db_name
 
 ### UUID
 
-Use UUIDv7 as primary key: <https://www.cybertec-postgresql.com/en/unexpected-downsides-of-uuid-keys-in-postgresql/>
+UUID as primary key:
 
-<https://planetscale.com/blog/the-problem-with-using-a-uuid-primary-key-in-mysql#use-an-ordered-uuid-variant>
+- <https://www.cybertec-postgresql.com/en/unexpected-downsides-of-uuid-keys-in-postgresql/>
+- <https://news.ycombinator.com/item?id=40884878>
+- <https://planetscale.com/blog/the-problem-with-using-a-uuid-primary-key-in-mysql#use-an-ordered-uuid-variant>
 
 ### Links
 
diff --git a/base/science-tech-maths/programming/dev-tools/git/git.md b/base/science-tech-maths/programming/dev-tools/git/git.md
index 18764a7..04b033f 100644
--- a/base/science-tech-maths/programming/dev-tools/git/git.md
+++ b/base/science-tech-maths/programming/dev-tools/git/git.md
@@ -21,7 +21,7 @@ Detaching HEAD just means attaching it to a commit instead of a branch: `git che
 ### Staging Area
 
 - helps split changes in several commits
-- review changes before commiting
+- review changes before committing
 
 ## git push
 
@@ -33,6 +33,12 @@ Go to the branch named "main" in my repository, grab all the commits, and then g
 
 **The opposite of git-push is not git-pull, it's git-fetch.**
 
+### Push force and push force with lease
+
+`git push --force` will overwrite the remote branch with your local one.
+
+`git push --force-with-lease` will block the push if someone else has pushed to the same branch. It's a safer option.
+
 ## Merge
 
 `git merge` ***ON TOP OF*** `main`