1 files changed, 86 insertions, 0 deletions
diff --git a/hm-module.nix b/hm-module.nix
new file mode 100644
index 0000000..d3fa652
--- /dev/null
+++ b/hm-module.nix
@@ -0,0 +1,86 @@
+self:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+with lib;
+
+let
+  cfg = config.programs.openBambooNetworking;
+
+  mkClientPlugin =
+    clientType: obnVersion: pkgs.callPackage (self + "/package.nix") { inherit clientType obnVersion; };
+
+  # home.file targets are relative to $HOME; configDir is given as an
+  # absolute path (so it composes naturally whether it comes from
+  # config.xdg.configHome, a Flatpak path, or something else entirely).
+  relToHome =
+    path:
+    if lib.hasPrefix (config.home.homeDirectory + "/") path then
+      lib.removePrefix (config.home.homeDirectory + "/") path
+    else
+      throw "programs.openBambooNetworking: configDir (${path}) must be under $HOME (${config.home.homeDirectory})";
+
+  orcaPlugin = mkClientPlugin "orca_slicer" cfg.orcaSlicer.obnVersion;
+in
+{
+  options.programs.openBambooNetworking = {
+    enable = mkEnableOption ''
+      open-bamboo-networking (https://github.com/ClusterM/open-bamboo-networking),
+      an open-source replacement for Bambu Lab slicers' proprietary network
+      plugin, built from source
+    '';
+
+    # Each supported client gets its own nested option group. Only
+    # orcaSlicer is wired up today; add siblings here (e.g. bambuStudio)
+    # as upstream support for them matures.
+    orcaSlicer = {
+      enable = mkOption {
+        type = types.bool;
+        default = true;
+        description = "Build and link the plugin for OrcaSlicer (or a compatible fork).";
+      };
+
+      obnVersion = mkOption {
+        type = types.str;
+        default = "02.03.00.99";
+        description = ''
+          Plugin ABI version baked into the built filename. Must match what
+          the slicer expects: check with
+            jq -r '.app.network_plugin_version // "not set"' <configDir>/OrcaSlicer.conf
+          First three components should match what the app reports; the
+          last component should stay .99 (see README).
+        '';
+      };
+
+      configDir = mkOption {
+        type = types.str;
+        default = "${config.xdg.configHome}/OrcaSlicer";
+        defaultText = literalExpression ''"''${config.xdg.configHome}/OrcaSlicer"'';
+        description = ''
+          Directory containing OrcaSlicer.conf and its plugins/ subfolder.
+          Override this if you're on a fork with a different config
+          directory (e.g. ~/.config/BambuStudio, ~/.config/OrcaSlicer-Nightly),
+          or a Flatpak install (e.g. ~/.var/app/io.github.softfever.OrcaSlicer/config/OrcaSlicer).
+          Must be a path under $HOME.
+        '';
+      };
+    };
+  };
+
+  config = mkIf cfg.enable (mkMerge [
+    (mkIf cfg.orcaSlicer.enable {
+      home.packages = [ orcaPlugin ];
+
+      home.file = {
+        "${relToHome cfg.orcaSlicer.configDir}/plugins/libbambu_networking_${cfg.orcaSlicer.obnVersion}.so".source =
+          "${orcaPlugin}/plugins/libbambu_networking_${cfg.orcaSlicer.obnVersion}.so";
+        "${relToHome cfg.orcaSlicer.configDir}/plugins/libBambuSource.so".source =
+          "${orcaPlugin}/plugins/libBambuSource.so";
+      };
+    })
+  ]);
+}