refactor: change subflake locking to an absolute git locking strategy for compatibility with nix 2.18+#418

blaggacao wants to merge 8 commits intomaindivnix/std:mainfrom

refactor/self-referential-locking-on-the-flydivnix/std:refactor/self-referential-locking-on-the-flyCopy head branch name to clipboard