- Update opencode from v1.1.48 to v1.1.51
- Refactor build dependencies: remove fzf, add sysctl conditionally for Darwin
- Fix bun to use nixpkgs-unstable input instead of direct dependency
- Add platform-specific outputHash for Darwin and Linux
- Move wrapProgram from postFixup to installPhase
- Remove unnecessary build patch and postPatch/postBuild workarounds
- Fix config path to use absolute home directory
- Add git and home-manager to default shell inputs
- Minor README documentation reordering