[WIP] Many things:

- `gammastep`
- `sudo` with fingerprints that fallbacks to normal password and works
  with `swaylock`

hosts/thinkpad/default.nix

@@ -23,6 +23,7 @@
       "bluetooth"
       "docker"
       "transmission"
+      "fprintd"
     ];
 
   boot.initrd.availableKernelModules = ["xhci_pci" "nvme" "usb_storage" "sd_mod"];