feat: automate build with zig

.gitignore

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+zig-cache/
+zig-out/

build.zig

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+const std = @import("std");
+
+pub fn build(b: *std.Build) !void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const rgbds = b.dependency("rgbds", .{
+        .target = target,
+        .optimize = optimize,
+    });
+
+    const assemble = b.addRunArtifact(rgbds.artifact("rgbasm"));
+    assemble.addArg("-L");
+    assemble.addArg("-o");
+    const main_obj = assemble.addOutputFileArg("main.o");
+    assemble.addFileArg(.{ .path = "main.asm" });
+
+    const link = b.addRunArtifact(rgbds.artifact("rgblink"));
+    link.addArg("-o");
+    const rom = link.addOutputFileArg("3dp.gb");
+    link.addFileArg(main_obj);
+
+    const fix = b.addRunArtifact(rgbds.artifact("rgbfix"));
+    fix.addArg("-v");
+    fix.addArg("-p");
+    fix.addArg("0xFF");
+    fix.addFileArg(rom);
+
+    const install_file = b.addInstallFile(rom, "3dp.gb");
+    install_file.step.dependOn(&fix.step);
+
+    const install = b.getInstallStep();
+    install.dependOn(&install_file.step);
+}

build.zig.zon

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+.{
+    .name = "gb3dplatformer",
+    .version = "0.0.0",
+    .dependencies = .{
+        .rgbds = .{
+            .url = "https://github.com/desttinghim/rgbds/archive/466d72960959bacc949cdc32dd0a7bef81033c93.tar.gz", 
+            .hash = "12208b3722dda87fccc706f8a3fd83b1f9c8cb92a85484c72e1644849d1f4a1cbfc4",        },
+    },
+    .paths = .{
+        "",
+    },
+}