refactor: make nanuqsaurus module-based; keep btrfs install profile

README.md

@@ -1,13 +1,19 @@
 > under heavy development
 
-## Install in place
+## Adopt on an existing NixOS install (recommended)
+
+Use a small local wrapper flake that imports this repo’s profile module and keeps
+your machine’s `hardware-configuration.nix` for mounts/boot:
+
+- `docs/adopt.md`
+
+## Fresh install (wipes disk, uses disko)
 
 ```
-sudo nixos-rebuild switch --flake "git+https://codeberg.org/randogoth/nanuqsaurus.git#nanuqsaurus"
+sudo nix --experimental-features "nix-command flakes" \
+  run github:nix-community/disko/latest#disko-install -- \
+  --mode format \
+  --flake "git+https://codeberg.org/randogoth/nanuqsaurus.git#nanuqsaurus-btrfs" \
+  --disk main /dev/disk/by-id/<your-disk> \
+  --mount-point /mnt
 ```
-
-## Install to a mounted target root (/mnt)
-
-```
-sudo nixos-install --root /mnt --flake "git+https://codeberg.org/randogoth/nanuqsaurus.git#nanuqsaurus"
-```