put in ~/.gitconfig

.gitconfig

[alias]
  # Remove files from index, keep working tree
  unstage = reset HEAD --

  # Tracked-only, short status
  s  = status -uno --short

  # Compact commit graph
  lg = log --all --decorate --oneline --graph

  # Delete merged local branches (safe set)
  cleanup = !git remote prune origin && git branch --merged | egrep -v '(^\\*|master|main|develop)' | xargs -r git branch -D


[color]
  # Enable colored output
  ui = true


[help]
  # Auto-fix mistyped commands after delay
  autocorrect = 5


[commit]
  # Show diff in commit message editor
  verbose = true


[pull]
  # Rebase instead of merge on pull
  rebase = true


[push]
  # Push current branch to its upstream
  default = simple

  # Auto-create upstream on first push
  autoSetupRemote = true

  # Push annotated tags with commits
  followTags = true


[fetch]
  # Remove deleted remote branches locally
  prune = true


[init]
  # Use 'main' for new repos
  defaultBranch = main


[diff]
  # Better diff algorithm for code
  algorithm = histogram

  # Highlight moved lines
  colorMoved = plain

  # Use i/o prefixes in diffs
  mnemonicPrefix = true

  # Detect renames
  renames = true


[rerere]
  # Reuse recorded conflict resolutions
  enabled = true

  # Auto-apply rerere resolutions
  autoupdate = true


[rebase]
  # Autosquash fixup!/squash! commits
  autoSquash = true

  # Stash local changes before rebase
  autoStash = true

  # Update dependent branches
  updateRefs = true


[merge]
  # Show base + both sides in conflicts
  conflictstyle = zdiff3