My personal NixOS + Home Manager flake. flake.nix feeds ./modules through flake-parts and import-tree so config stays in small files instead of one monster module.

How to work on it: conventions.md.

Hosts

Host	What it is
`t2mbp`	Intel MacBook with T2 chip — Niri/DMS, `t2linux` + fan daemon
`14900k`	Main x86 desktop — same GUI stack, also cross-builds aarch64 and exports NFS for Jellyfin
`ideapad`	Lenovo IdeaPad Duet 3 (Chromebook, `lenovo-wormdingler`) — Mobile NixOS on Snapdragon, Niri/DMS, touch/tablet bits in `_private/`
`uConsole`	Clockwork Pi uConsole (Pi 5 CM) — Niri/DMS, built with `nixos-raspberrypi` + oom-hardware
`nix-server`	Headless x86 VM — Attic, Gitea, Immich, SwiftShare, Personal-Website, DDRM, Portainer, …
`r5500`	Headless media box — Jellyfin, *arr, qBittorrent, Dispatcharr; library on NFS from `nix-server`

Each machine: modules/hosts/<name>/default.nix → nixosConfigurations.<name>, real config in *Configuration + optional _private/ and _services/.

Deploy / rebuild

Remote builds use the builder user (systemDeployBuilder, wired through client-services on desktops).

Fleet deploy is Navi — config in modules/deploy/navi.nix, outputs flake.navi / flake.naviHive.

nix develop          # devShell has navi + hints
navi apply --on <host>
navi apply-local --node 14900k --sudo   # this machine, if hostname matches

Plain rebuild still works: sudo nixos-rebuild switch --flake .#<host>.

Repo layout

modules/
  hosts/<host>/     # per-machine composition
  system/           # nixosModules.system aggregate
  desktop/          # GUI stack
  wisdom/           # HM modules (exports still named wisdom*)
  ssh/              # inbound NixOS + outbound HM
  deploy/           # navi hive
  lib/              # pure helpers → flake.lib

Machine-only stuff lives in hosts/<host>/_private/ — import-tree skips _private/ globally, so those files only get pulled in where you import them.