feat: add pre-commit hook to check TODO|FIXME|FIX comment

githooks/check-comment.nix

@@ -0,0 +1,19 @@
+{ pkgs, lib }:
+pkgs.writeShellScript "check-comment" ''
+  FILES=$("${lib.getExe pkgs.git}" diff --cached --name-only --diff-filter=ACM | grep '\.nix$' | grep -v '^githooks/check-comment.nix$')
+
+  TODO_FOUND=0
+
+  for file in $FILES; do
+    if grep -nHE '#\s*(TODO|FIXME|FIX):' "$file"; then
+      TODO_FOUND=1
+    fi
+  done
+
+  if [ $TODO_FOUND -eq 1 ]; then
+    echo "Remove all the '#TODO|FIXME|FIX' before committing"
+    exit 1
+  fi
+
+  exit 0
+''