From 4551e5134e7170bab00fd7dbf18bf7fb08e9faa7 Mon Sep 17 00:00:00 2001
From: "Thomas G. Lopes" <thomasgl@pm.me>
Date: Wed, 25 Mar 2026 12:41:52 +0000
Subject: [PATCH] integrate gsf via flake input and hardware.gsf module

---
 flake.lock              | 71 ++++++++++++++++++++++++++++++++++++++++-
 flake.nix               |  1 +
 modules/hosts/nixos.nix | 19 ++++-------
 3 files changed, 78 insertions(+), 13 deletions(-)

diff --git a/flake.lock b/flake.lock
index b2bd84d..1ecfb74 100644
--- a/flake.lock
+++ b/flake.lock
@@ -63,6 +63,43 @@
         "type": "github"
       }
     },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "gsf": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1774443741,
+        "narHash": "sha256-93//BYjZ+5Hs8sqSHDa3TkJIsCgOZ/MayzQA+1y7VCE=",
+        "ref": "refs/heads/main",
+        "rev": "af9f3e3567db16a885f716fa0b09b6c1bbb527af",
+        "revCount": 7,
+        "type": "git",
+        "url": "https://gitea.unrail.xyz/thomas/gotta-scroll-fast"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://gitea.unrail.xyz/thomas/gotta-scroll-fast"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -131,6 +168,22 @@
       }
     },
     "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1774106199,
+        "narHash": "sha256-US5Tda2sKmjrg2lNHQL3jRQ6p96cgfWh3J1QBliQ8Ws=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6c9a78c09ff4d6c21d0319114873508a6ec01655",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
       "locked": {
         "lastModified": 1773821835,
         "narHash": "sha256-TJ3lSQtW0E2JrznGVm8hOQGVpXjJyXY2guAxku2O9A4=",
@@ -150,9 +203,10 @@
       "inputs": {
         "agenix": "agenix",
         "flake-parts": "flake-parts",
+        "gsf": "gsf",
         "import-tree": "import-tree",
         "maccel": "maccel",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs_3"
       }
     },
     "systems": {
@@ -169,6 +223,21 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index be5fa21..1f15574 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,6 +11,7 @@
     import-tree.url = "github:vic/import-tree";
     agenix.url = "github:ryantm/agenix";
     maccel.url = "github:Gnarus-G/maccel";
+    gsf.url = "git+https://gitea.unrail.xyz/thomas/gotta-scroll-fast";
   };
 
   outputs =
diff --git a/modules/hosts/nixos.nix b/modules/hosts/nixos.nix
index 3fc15af..a4a9146 100644
--- a/modules/hosts/nixos.nix
+++ b/modules/hosts/nixos.nix
@@ -14,10 +14,13 @@ in {
   }: let
     smbSecretFile = ../../secrets/smb-credentials.age;
     hasSmbSecret = builtins.pathExists smbSecretFile;
+
+    gsfDevice = "/dev/input/by-id/usb-Ploopy_Corporation_Ploopy_Adept_Trackball_E6626067D39C532A0000000000000000-if02-event-mouse";
   in {
     imports = [
       inputs.agenix.nixosModules.default
       inputs.maccel.nixosModules.default
+      inputs.gsf.nixosModules.default
       ../../hardware-configuration.nix
     ];
 
@@ -102,18 +105,10 @@ in {
       enableCli = true;
     };
 
-    # Dotfile-managed maccel settings: place an executable script at
-    # ~/.config/maccel/apply.sh with your preferred `maccel set ...` commands.
-    systemd.user.services.maccel-apply-dotfiles = {
-      description = "apply maccel params from ~/.config/maccel/apply.sh";
-      wantedBy = ["default.target"];
-      after = ["default.target"];
-      serviceConfig = {
-        Type = "oneshot";
-        ExecStart = ''
-          ${pkgs.bash}/bin/bash -lc 'PATH=/run/current-system/sw/bin:$PATH; if [ -x "$HOME/.config/maccel/apply.sh" ]; then "$HOME/.config/maccel/apply.sh"; fi'
-        '';
-      };
+    hardware.gsf = {
+      enable = true;
+      device = gsfDevice;
+      inputGroupUsers = [flakeConfig.username];
     };
 
     # Programs