templates: add template for fyne

templates/fyne/.envrc

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+use flake

templates/fyne/.gitignore

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+.direnv
+*.bak
+result

templates/fyne/LICENSE

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+/*
+ * Copyright (c) 2022 Aaron Bieber <aaron@bolddaemon.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */

templates/fyne/flake.nix

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+{
+  description = "thing: stuff and things";
+
+  inputs.nixpkgs.url = "nixpkgs/nixos-23.05";
+
+  outputs = { self, nixpkgs }:
+    let
+      supportedSystems =
+        [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
+      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+      nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
+    in {
+      overlay = _: prev: { inherit (self.packages.${prev.system}) thing; };
+
+      packages = forAllSystems (system:
+        let pkgs = nixpkgsFor.${system};
+        in {
+          thing = pkgs.buildGoModule {
+            pname = "thing";
+            version = "v0.0.0";
+            src = ./.;
+
+            vendorHash = pkgs.lib.fakeSha256;
+            proxyVendor = true;
+
+            nativeBuildInputs = with pkgs; [ pkg-config ];
+            buildInputs = with pkgs; [
+              git
+              glfw
+              libGL
+              libGLU
+              openssh
+              pkg-config
+              xorg.libXcursor
+              xorg.libXi
+              xorg.libXinerama
+              xorg.libXrandr
+              xorg.libXxf86vm
+              xorg.xinput
+            ];
+          };
+        });
+
+      defaultPackage = forAllSystems (system: self.packages.${system}.thing);
+      devShells = forAllSystems (system:
+        let pkgs = nixpkgsFor.${system};
+        in {
+          default = pkgs.mkShell {
+            shellHook = ''
+              PS1='\u@\h:\@; '
+              nix flake run github:qbit/xin#flake-warn
+              echo "Go `${pkgs.go}/bin/go version`"
+            '';
+            buildInputs = with pkgs; [
+              git
+              go_1_20
+              gopls
+              go-tools
+
+              glfw
+              pkg-config
+              xorg.libXcursor
+              xorg.libXi
+              xorg.libXinerama
+              xorg.libXrandr
+              xorg.libXxf86vm
+              xorg.xinput
+            ];
+          };
+        });
+    };
+}
+