add kobo utils

pkgs/default.nix

@@ -5,4 +5,6 @@
   plymouth-themes = pkgs.callPackage ./plymouth.nix { };
   tic-80 = pkgs.callPackage ./tic-80.nix { };
   fennel-ls = pkgs.callPackage ./fennel-ls.nix { };
+  kobopatch = pkgs.callPackage ./kobopatch.nix { };
+  # mautrix-discord = pkgs.callPackage ./mautrix-discord.nix { }; # Handled by matrix-appservices input
 }

pkgs/kobopatch.nix

@@ -0,0 +1,22 @@
+{ lib, buildGoModule, fetchFromGitHub }:
+
+buildGoModule rec {
+  name = "kobopatch";
+  version = "0.15.0";
+
+  vendorSha256 = "1i6srhyig4x8mywyc2l8wzzm1afvb7wxmjsr84c447sb1xss6p7x";
+
+  src = fetchFromGitHub {
+    owner = "geek1011";
+    repo = "kobopatch";
+    rev = "653070c67c83ec61884854efc4f8a3132d82a2e5";
+    sha256 = "09hr3zh0w0f78cx40d2yydqv0mmjdh4iwdgia7sikraphvha85nn";
+  };
+
+  meta = with lib; {
+    description = "A patch maker for kobo eReader devices.";
+    homepage = "https://github.com/geek1011/kobopatch";
+    license = licenses.mit;
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}

pkgs/koboutils.nix

@@ -0,0 +1,23 @@
+{ lib, buildGoModule, fetchFromGitHub }:
+
+buildGoModule rec {
+  name = "koboutils";
+  version = "git_2020-04-08";
+
+  vendorSha256 = "1hqvizvbc29yib6awmvlklxkq7j8c0d32gxsipdiwhkh79xbd6wq";
+  deleteVendor = true;
+
+  src = fetchFromGitHub {
+    owner = "geek1011";
+    repo = "koboutils";
+    rev = "50024f2afc6b20205a273ffcbb72c934b80bba96";
+    sha256 = "0zpmjya13wbmpxbwrpbvw7d2rb040wmc09djhnn6dszlqpflwxmy";
+  };
+
+  meta = with lib; {
+    description = "Various utilities for Kobo eReaders";
+    homepage = "https://github.com/geek1011/koboutils";
+    license = licenses.mit;
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}