Peter Cooper peterc

Make macOS dock instantly appear/disappear: defaults write com.apple.dock autohide-time-modifier -int 0;killall Dock

Truncate an MP3 to 10 minutes: ffmpeg -t 600 -i in.mp3 -acodec copy out.mp3

All the TLDs: http://data.iana.org/TLD/tlds-alpha-by-domain.txt

Poor man's dark mode in CSS: filter: invert(100%) hue-rotate(180deg);

AWS's IP ranges: https://ip-ranges.amazonaws.com/ip-ranges.json

JSON Library for Ruby

The JSON library is a comprehensive and robust solution for parsing, generating, and manipulating JSON data in Ruby. It offers full support for JSON encoding and decoding, including extensions for common Ruby types like Date, Time, Complex, Rational, and more. The library also provides advanced features such as extended JSON object creation, custom generators, and parser configurations.

This README provides an overview of usage, advanced options, compatible Ruby types, and important notes for developers who want to integrate JSON handling seamlessly in their Ruby applications.

Features

Basic MCP server for `man` page lookups

bun init -y
bun add @modelcontextprotocol/sdk
bun add zod
bunx @modelcontextprotocol/inspector bun index.ts # if needed

For my claude_desktop_config.json (change if you're someone else):

You MUST NOT try and generate a Rails app from scratch on your own by generating each file. For a NEW app you MUST use rails new first to generate all of the boilerplate files necessary.
Create an app in the current directory with rails new .
Use Tailwind CSS for styling. Use --css tailwind as an option on the rails new call to do this automatically.
Use Ruby 3.2+ and Rails 8.0+ practices.
Use the default Minitest approach for testing, do not use RSpec.
Default to using SQLite in development. rails new will do this automatically but take care if you write any custom SQL that it is SQLite compatible.
An app can be built with a devcontainer such as rails new myapp --devcontainer but only do this if requested directly.
Rails apps have a lot of directories to consider, such as app, config, db, etc.
Adhere to MVC conventions: singular model names (e.g., Product) map to plural tables (products); controllers are plural.
Guard against incapable browsers accessing controllers with `allo

On Runpod with latest PyTorch image (2.4.0) with a GPU > 32GB VRAM (e.g. NVIDIA A100 80GB PCIe).

ssh in and:

apt update -y
apt install -y nano screen git
pip install git+https://github.com/huggingface/trl.git accelerate transformers datasets peft wandb tqdm ninja flash-attn

	require 'zlib'
	require 'objspace'

	# A variant of https://en.wikipedia.org/wiki/Count%E2%80%93min_sketch

	class CompactApproximator
	attr_accessor :cells

	def initialize(size, hashes, min_elem, join_fn, meet_fn)
	@m, @k = size, hashes

	# Zig Programming Cheat Sheet

	This guide condenses the key ideas from Chapter 1 of the Zig book, emphasizing Zig's syntax, semantics, workflows, and philosophy. It distills nuanced language details, technical rules, compiler constraints, and examples for direct application by AI or technical users.

	---

	## 1. Zig Philosophy and Paradigm

	- Zig is a low-level, general-purpose, modern programming language designed for safety, control, and simplicity.
	- Major design goal: Less is more (removes confusing/unsafe C/C++ behaviors; adds consistency).

	Hanami is a Ruby framework designed to create software that is well-architected, maintainable and a pleasure to work on.

	These guides aim to introduce you to the Hanami framework and demonstrate how its components fit together to produce a coherent app.

	To create a Hanami app, you will need Ruby 3.1 or greater. Check your ruby version with `ruby --version`

	To install: `gem install hanami`

	Hanami provides a hanami new command for generating a new app: `hanami new bookshelf` (where bookshelf is an example app name)

	You simulate a group of expert software developers, engineers and architects who debate and analyze an application development idea in order to ultimately produce a robust spec. Each participant has a unique perspective, engages in natural discussion, and refines ideas through back-and-forth exchange. The goal is to explore concepts, challenge assumptions, and reach well-reasoned conclusions.

	This is an on-going conversation between an external user who is asking for a piece of software to be built and the group of experts.

	## Output Format
	1. Simulate a technical debate** where ideas and answers emerges organically.
	2. Use a play script style where when someone speaks, their name is included at the start of each line.
	3. You must end with a pertinent question for the user to answer in order to productively continue the debate. Format the answer like so: "QUESTION: Question goes here." This must be the very final paragraph of your response.
	4. If the group is satisfied they have all the answers needed to pr

	// Open a supplied HTML file and record whatever's going on to an MP4.
	//
	// Usage: node recorder.cjs <path_to_html_file>
	// Dependencies: npm install puppeteer fluent-ffmpeg
	// (and yes, you need ffmpeg installed)
	//
	// It expects a <canvas> element to be on the page as it waits for
	// that to load in first, but you can edit the code below if you
	// don't want that.
	//

Peter Cooper peterc

JSON Library for Ruby

Features

Basic MCP server for man page lookups

Basic MCP server for `man` page lookups