deprecate home-manager (7/7): teardown — remove input, modules/home, all wiring

[etrobert-bot]

Part of #197 (remove home-manager). Atomic PR 7 of 7 — TEARDOWN. Do last.

⚠️ Depends on PRs 1–6 being merged. This PR removes home-manager entirely; it must only be opened/merged once every managed setting (mpd/mpdris2, hyprlock+xdg.mime, hypridle, darwin syncthing, darwin .hushlogin+bg alias, .prettierrc) has been migrated and merged to main. Branch this off an up-to-date main.

Remove

1. modules/home/ directory — delete it entirely: default.nix, common.nix, linux.nix, leod.nix, hypridle.nix, darwin.nix (and anything else under it). By this point each should be empty of still-needed settings; double-check nothing live remains before deleting.
2. The three home-manager.users.soft = … / standalone wirings:
   • modules/nixos-workstation.nix:187 — home-manager.users.soft = self.homeModules.linux;
   • modules/hosts/leod/configuration.nix:29 — home-manager.users.soft = self.homeModules.leod;
   • modules/hosts/aaron/configuration.nix:231 — home-manager.users.soft = self.homeModules.darwin;
   • the standalone homeConfigurations in modules/home/default.nix (deleted with the dir).
3. The home-manager.{nixos,darwin}Modules.home-manager imports from the 3 host files:
   • modules/hosts/tower/default.nix (home-manager.nixosModules.home-manager, and the home-manager input inherit)
   • modules/hosts/leod/default.nix (home-manager.nixosModules.home-manager)
   • modules/hosts/aaron/default.nix (home-manager.darwinModules.home-manager)
4. The home-manager package from modules/workstation.nix:85 (systemPackages list) and the home-manager = { useGlobalPkgs; useUserPackages; } block at modules/workstation.nix:147.
5. The flake input + flakeModule in flake.nix: the home-manager input (flake.nix:32), the inputs.home-manager.flakeModules.home-manager import (flake.nix:80), and the modules/home/* entries in the flake-parts imports list.
6. Run nix flake update home-manager-free: after removing the input, run nix flake lock / let the lockfile drop the home-manager nodes.

Verify (all must pass)

• nix flake check
• nix build .#nixosConfigurations.tower.config.system.build.toplevel
• nix build .#nixosConfigurations.leod.config.system.build.toplevel
• nix build .#darwinConfigurations.aaron.system
• grep -rn "home-manager\|homeModules\|homeConfigurations" --include="*.nix" . returns nothing (outside flake.lock, which should also be clean after relock).
• Also update CLAUDE.md if it references home-manager as present (the architecture note says "Home-manager should be a last resort" — adjust to reflect it's now removed).

Closing

Use Closes #197 in the PR body so the epic auto-closes on merge.

Scope guard

Pure teardown — no behavior changes. If any build fails because a setting wasn't actually migrated in PRs 1–6, STOP and flag it rather than re-implementing the migration here.

[etrobert-bot]

Status update (2026-07-01) — the plan body is stale in a few places; current state on main:

Prerequisite migrations: 5 of 6 done

• mpd/mpdris2 — merged (feat(mpd): migrate MPD + mpdris2 from home-manager to native NixOS user services #322)
• hyprlock + xdg.mime — merged (feat(hyprlock-wrapped): migrate hyprlock config + xdg.mime off home-manager #319)
• hypridle — merged (feat(hypridle-wrapped): migrate leod hypridle off home-manager #321)
• .prettierrc + ~/.config/home-manager symlink handling — merged (refactor(home): migrate .prettierrc to activation script, drop ~/.config/home-manager symlink #320)
• darwin miscellany (.hushlogin, bg alias) — merged (deprecate(home-manager): migrate darwin .hushlogin + bg alias off home-manager #318)
• darwin syncthing — the only remaining payload. Both attempts were closed unmerged: feat(darwin): replace home-manager syncthing with native launchd agents #198 (nix-darwin native) and feat(aaron): migrate darwin syncthing to launchd user agents #323 (launchd user agents). The branches (feat/darwin-syncthing-native, feat/darwin-syncthing-launchd, plus worktree-agent-a5e61f7e0a722f76c with a follow-up ignorePatterns fix) are kept locally on tower.

Corrections to the "Remove" list

• modules/home/leod.nix no longer exists, and leod's configuration.nix HM wiring is already gone. modules/home/ is now: default.nix, common.nix, linux.nix, darwin.nix, hypridle.nix.
• Current wiring to remove: modules/nixos-workstation.nix:195, modules/hosts/aaron/configuration.nix:234, the HM module imports in the three host default.nix files (tower:24, leod:19, aaron:21), modules/workstation.nix:85 + the block at :147, and flake.nix:32 (input), :80 (flakeModule), plus the modules/home/* entries in the flake-parts imports.

modules/home/hypridle.nix is already dead

flake.homeModules.hypridle is consumed nowhere since #321 — leod imports nixosModules.hypridle (modules/hypridle.nix), and the settings are baked into hypridle-wrapped. It can be deleted now, independent of the syncthing question.

Net

Once darwin syncthing lands (or is decided against HM-style), the linux side carries zero payload (common.nix is only stateVersion, the .config/home-manager symlink, and HM self-management), and this teardown is a single small PR.