| #!/usr/bin/env ruby | |
| # A macOS GUI app written in Ruby, calling libobjc directly via Fiddle. | |
| # No gems. No Objective-C. Just Ruby and the runtime. | |
| require "fiddle" | |
| OBJC = Fiddle.dlopen("/usr/lib/libobjc.A.dylib") | |
| APPKIT = Fiddle.dlopen("/System/Library/Frameworks/AppKit.framework/AppKit") | |
| # Core runtime functions |
| // A macOS GUI app written in pure C, using the Objective-C runtime directly. | |
| // No Objective-C syntax anywhere. Just raw objc_msgSend and runtime calls. | |
| // This is cursed. Enjoy. | |
| // Compile with clang -Wall -Wextra -o hello_runtime hello_runtime.c \ | |
| // -framework Cocoa -lobjc | |
| #include <objc/objc.h> | |
| #include <objc/message.h> | |
| #include <objc/runtime.h> |
| # Just because the example in the docs doesn't seem to work outside of a Rails app | |
| require 'ruby_llm' | |
| RubyLLM.configure do |config| | |
| config.gemini_api_key = ENV['GEMINI_API_KEY'] | |
| end | |
| chat = RubyLLM.chat(model: "gemini-2.5-flash-image") | |
| reply = chat.ask("Cyberpunk city street at night, raining, neon signs") |
| require "openai" | |
| client = OpenAI::Client.new # assumes valid key in OPENAI_API_KEY | |
| begin | |
| resp = client.chat.completions.create( | |
| model: :"gpt-5-nano", | |
| reasoning_effort: :high, | |
| verbosity: :low, | |
| messages: [{ role: "user", content: "Tell me a joke" }] |
| import sys | |
| import requests | |
| import replicate | |
| from Pylette import extract_colors | |
| # YOU NEED A REPLICATE API TOKEN IN 'REPLICATE_API_TOKEN' | |
| prompt = sys.argv[1] if len(sys.argv) > 1 else "sandy beach" | |
| output = replicate.run( |
| require "openai" | |
| client = OpenAI::Client.new( | |
| api_key: ENV.fetch("OPENROUTER_API_KEY"), | |
| base_url: "https://openrouter.ai/api/v1" | |
| ) | |
| models = %w{ | |
| google/gemma-2b-it | |
| anthropic/claude-sonnet-4 |
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
| 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). |
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.
