Josh Kautz joshkautz

Building an MCP Server to Teach Claude Code About Nintendo 64 Homebrew Development

How I used Claude Code to build its own knowledge base from Discord conversations, SDK documentation, and open-source game projects

I'm building Nintendo 64 homebrew games using an open-source SDK called Libdragon. It's a sophisticated, low-level C/C++ toolchain for a console released in 1996 -- and it's incredibly niche. Claude doesn't know much about it out of the box.

So I set out to fix that. Not by fine-tuning a model or writing extensive prompt instructions, but by building an MCP (Model Context Protocol) server that gives Claude Code direct, searchable access to the collective knowledge of the N64 homebrew community.

Replace TextEdit as the default text editor application for opening plain text files and files with no extensions on macOS.

Run the following command in the Terminal to find the bundle identifier for your desired text editor application:

$ osascript -e 'id of app "Visual Studio Code"'
com.microsoft.VSCode

$ osascript -e 'id of app "Sublime Text"'
com.sublimetext.3

System Preferences → Sharing:

Navigate to  → About This Mac → Overview
Copy Serial Number
Replace Computer Name with Serial Number

System Preferences → Trackpad → Point & Click:

Look up & data detectors: Enabled: Force Click with one finger
Secondary click: Enabled: Click with two fingers
Tap to click: Disabled
Click: Medium
Tracking speedy: 4
Force Click and haptic feedback: Enabled

System Preferences → Trackpad → Scroll & Zoom:

Scroll direction: Natural: Disabled

System Preferences → Battery → Battery:

Show battery status in menu bar: True
Turn display off after: Never
Slightly dim the display while on battery power: True
Enable Power Nap while on battery power: False
Optimize video streaming while on battery: True
Optimized battery charging: True

System Preferences → Battery → Power Adapter:

Show battery status in menu bar: True

	import puppeteer from "puppeteer";

	let browser = null;
	let selector = null;
	let frame = null;

	(async () => {
	try {
	browser = await puppeteer.launch({ headless: false });

	# Run in PowerShell

	# Configure Terminal App

	# TODO: Download images from hosting

	# Download & Install Pyenv
	Invoke-WebRequest -UseBasicParsing -Uri "https://raw.githubusercontent.com/pyenv-win/pyenv-win/master/pyenv-win/install-pyenv-win.ps1" -OutFile "./install-pyenv-win.ps1"; &"./install-pyenv-win.ps1"

	# Download & Install AWS CLI

	// Detect strings with potential credit cards in them and mask the credit cards.
	// Credit card strings are strings that have 13-16 consecutive digits.

	const maskify = (input) => {
	const regex = /\b\d{13,16}\b/;
	var card = input.match(regex);
	return (card) ? mask(input, card[0]) : input;
	}

	const mask = (input, card) => {

	import 'package:flutter/material.dart';

	void main() {
	runApp(MyApp());
	}

	class MyApp extends StatelessWidget {
	// This widget is the root of your application.
	@override
	Widget build(BuildContext context) {

	import 'dart:collection';

	class Point {
	int x;
	int y;
	Point({required this.y,required this.x});
	}

	void main() {
	print('Finding a viable solution for the shortest path...');