2026-05-20: Dotfiles Migration & Antigravity Transition

Engineering Log

1. Dotfiles Restructure (Option C.2)

  • Successfully migrated ~/dotfiles from manual symlinks to a fully declarative Nix Home Manager architecture.
  • Eliminated base/ and nix/ folders.
  • Consolidated configurations into flat modules: home.nix, shell.nix, git.nix, ssh.nix.
  • The system compiled flawlessly and is now the live standard.

2. Antigravity CLI Migration

  • Discovered and adapted to breaking changes introduced by the new Antigravity CLI (agy):
    • Transitioned from Node/NPM to a standalone Go binary.
    • State moved from project .gemini folders to .agents.
    • Migrated plugins natively via agy plugin import gemini.
  • Roadblock: Encountered persistent “Model not supported in location” errors during deployment testing on the Laptop.
  • Root Cause & Fix: The error was traced back to two issues:
    1. GCP Location mismatch (us vs us-central1). We nixified settings.json to lock this across devices.
    2. Severe file corruption in the global GEMINI.md context file (unresolved Git merge conflicts).
  • Current Status: We reverted GEMINI.md to the strict “Thin-Context” RAG-first standard to resolve parser failures. Final verification of the agy CLI is paused until tonight.

3. Immediate Pivot

  • Paused infrastructure work to clear the slate for a new, incoming project.