Peter Byfield

django-modern-rest. Modern REST framework for Django with types and async support!

worktrunk. Worktrunk is a CLI for Git worktree management, designed for parallel AI agent workflows

oxyde. Oxyde ORM is a type-safe, Pydantic-centric asynchronous ORM with a high-performance Rust core designed for clarity, speed, and reliability.

miller. Miller is like awk, sed, cut, join, and sort for name-indexed data such as CSV, TSV, and tabular JSON

choose. A human-friendly and fast alternative to cut (and sometimes awk)

rtk. CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

mcp-openapi-schema-explorer. MCP server providing token-efficient access to OpenAPI/Swagger specs via MCP Resource Templates for client-side exploration.

refined-github. :octocat: Browser extension that simplifies the GitHub interface and adds useful features

zensical. A modern static site generator by the Material for MkDocs team

Graph-Easy. Convert or render graphs (as ASCII, HTML, SVG or via Graphviz)

slides. Terminal based presentation tool

pagefind. Static low-bandwidth search at scale

nullclaw. Fastest, smallest, and fully autonomous AI assistant infrastructure written in Zig

nanoclaw. A lightweight alternative to OpenClaw that runs in containers for security. Connects to WhatsApp, Telegram, Slack, Discord, Gmail and other messaging apps,, has memory, scheduled jobs, and runs directly on Anthropic's Agents SDK

git-who. Git blame for file trees

Thaw. The menu bar manager for macOS

datastar-python. Official Datastar Python SDK.

stario. Bringing back joy of building web applications.

dirty-equals. Doing dirty (but extremely useful) things with equals.

django-bolt. Rust-powered API framework for Django achieving 60k+ RPS. Uses Actix Web for HTTP, PyO3 for Python bridging, msgspec for serialization. Decorator-based routing with built-in auth and middleware.

eza. A modern alternative to ls

watchexec. Executes commands in response to file modifications

sd. Intuitive find & replace CLI (sed alternative)

zellij. A terminal workspace with batteries included

upterm. Instant Terminal Sharing

opencode. The open source coding agent.

nougat. Implementation of Nougat Neural Optical Understanding for Academic Documents

litestream. Streaming replication for SQLite.

claude-code-showcase. Comprehensive Claude Code project configuration example with hooks, skills, agents, commands, and GitHub Actions workflows

piccolo. A fast, user friendly ORM and query builder which supports asyncio.

msgspec. A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML

spec-kit. 💫 Toolkit to help you get started with Spec-Driven Development

bandit. Bandit is a tool designed to find common security issues in Python code.

typos. Source code spell checker

deptry. Find unused, missing and transitive dependencies in a Python project.

python-diskcache. Python disk-backed cache (Django-compatible). Faster than Redis and Memcached. Pure-Python.

advent-of-code-rust. Blazing fast Rust solutions for every Advent of Code puzzle from 2015 to 2025, solving 524 stars in less than 1 second.

intervaltree. A mutable, self-balancing interval tree. Queries may be by point, by range overlap, or by range containment.

fil-c. Fil-C: completely compatible memory safety for C and C++

python-tabulate. Pretty-print tabular data in Python, a library and a command-line utility. Repository migrated from bitbucket.org/astanin/python-tabulate.

intcode. Compiler, assembler, and VM for intcode from Advent of Code 2019

tigerbeetle. The financial transactions database designed for mission critical safety and performance.

VoiceInk. The best open-source alternative to Superwhisper & Wispr Flow. Voice-to-text app for macOS with no subscription

zig-book. An open, technical and introductory book for the Zig programming language 📚📖

zig. Moved to Codeberg

mise. dev tools, env vars, task runner

just. 🤖 Just a command runner

stegcloak. Hide secrets with invisible characters in plain text securely using passwords 🧙🏻‍♂️⭐

cargo-dist. 📦 shippable application packaging

ast-grep. ⚡A CLI tool for code structural search, lint and rewriting. Written in Rust

zed. Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

gomplate. A flexible commandline tool for template rendering. Supports lots of local and remote datasources.

baml. The programming language for agents

humanlayer. The best way to get AI coding agents to solve hard problems in complex codebases.

zed-shopify-liquid. A Zed extension to add syntax highlighting and the Shopify LSP server for Liquid

simple.css. Simple.css is a CSS template that allows you to make a good looking website really quickly.

uv. An extremely fast Python package and project manager, written in Rust.

ollama-python. Ollama Python library

obsidian-git. Integrate Git version control with automatic commit-and-sync and other advanced features in Obsidian.md

markdown-it. Markdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed

pico. Minimal CSS Framework for semantic HTML

diffy. Tools for finding and manipulating differences between files

joblib. Computing with Python functions.

scaf. scaf is a template manager that simplifies bootstrapping and updating projects.

github-action-benchmark. GitHub Action for continuous benchmarking to keep performance

bencher. 🐰 Bencher - Continuous Benchmarking

rustowl. Visualize Ownership and Lifetimes in Rust

grimp. Builds a graph of a Python project's internal dependencies.

pathfinding. Pathfinding library for rust

xocto. Python and Django utilities from Kraken Technologies

bombardier. Fast cross-platform HTTP benchmarking tool written in Go

speedscope. 🔬 A fast, interactive web-based viewer for performance profiles.

py-spy. Sampling profiler for Python programs

petgraph. Graph data structure library for Rust.

fast_paths. Fast shortest path calculations for Rust

Parser. Rust

rust-advanced-testing-workshop. A course to move beyond the built-in Rust testing toolkit.

project-based-learning. Curated list of project-based tutorials

criterion.rs. Statistics-driven benchmarking library for Rust

slotmap. Slotmap data structure for Rust

rust-pretty-assertions. Overwrite `assert_eq!` with a drop-in replacement, adding a colorful diff.

pest. The Elegant Parser

cargo-expand. Subcommand to show result of macro expansion

aoc-cli. Advent of Code command-line tool

rstest. Fixture-based test framework for Rust

jsonsubschema. Tool for checking whether a JSON schema is a subschema of another JSON schema.

isjsonschemasubset. Check one JSON schema is a subset of another

ouroboros. Easy self-referential struct generation for Rust.

thiserror. derive(Error) for struct and enum error types

anyhow. Flexible concrete Error type built on std::error::Error

rayon. Rayon: A data parallelism library for Rust

fd. A simple, fast and user-friendly alternative to 'find'

import-linter. Lint your Python architecture.

pip-tools. A set of tools to keep your pinned Python dependencies fresh.

impulse. Impulse is a command line tool for exploring the imports in a Python package.

ruff. An extremely fast Python linter and code formatter, written in Rust.

petite-vue. 6kb subset of Vue optimized for progressive enhancement

pint. Operate and manipulate physical quantities in Python

mashumaro. Fast and well tested serialization library

laboratory. Achieving confident refactoring through experimentation with Python 2.7 & 3.3+

ripgrep. ripgrep recursively searches directories for a regex pattern while respecting your gitignore

openholidaysapi.website. Website for the OpenHolidays API project

sqlmodel. SQL databases in Python, designed for simplicity, compatibility, and robustness.

syrupy. :pancakes: The sweeter pytest snapshot plugin

radon. Various code metrics for Python code

htmx. </> htmx - high power tools for HTML

pre-commit. A framework for managing and maintaining multi-language pre-commit hooks.

wily. A Python application for tracking, reporting on timing and complexity in Python code

pgcli. Postgres CLI with autocompletion and syntax highlighting

eventsourcing. A library for event sourcing in Python.

Advent-of-code. Python

glamour. Stylesheet-based markdown rendering for your CLI apps 💇🏻‍♀️

glow. Render markdown on the CLI, with pizzazz! 💅🏻

rich. Rich is a Python library for rich text and beautiful formatting in the terminal.

python-connector-api. Python Connector for Meteomatics Weather API, the documentation can be found on api.meteomatics.com

auma.js. Augmented audio (auma) is an open source framework that provides illustrated and interactive audio content. Auma’s lightweight and accessible design allows it to offer eLearning to marginalized, often illiterate populations with limited access to technology.

diagrams. :art: Diagram as Code for prototyping cloud system architectures

dacite. Simple creation of data classes from dictionaries.

mangum. AWS Lambda support for ASGI applications

bolt-python. A framework to build Slack apps using Python

task. A fast, cross-platform build tool inspired by Make, designed for modern workflows.

GCPSketchnote. If you are looking to become a Google Cloud Engineer , then you are at the right place. GCPSketchnote is series where I share Google Cloud concepts in quick and easy to learn format.

kit. A standard library for microservices.

system-design-primer. Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

tgik. Official repository for TGI Kubernetes (TGIK)!

demo. Simple demonstration app for 'Cloud Native Devops'

age. A simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability.

sops. Simple and flexible tool for managing secrets

delve. Delve is a debugger for the Go programming language.

ingress-nginx. Ingress NGINX Controller for Kubernetes

stylelint-config-prettier. Turns off all rules that are unnecessary or might conflict with prettier.

algo. 101+ coding interview problems in Go

ultimate-go. The Ultimate Go Study Guide

react-optimize. ReactJS A/B testing with Google Optimize

craftinginterpreters. Repository for the book "Crafting Interpreters"

lunr.js. A bit like Solr, but much smaller and not as bright

pyenv-installer. This tool is used to install `pyenv` and friends.

brew. 🍺 The Package Manager for Everywhere

semgrep. Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.

pytest-dotenv. A py.test plugin that parses environment files before running tests

drf-spectacular. Sane and flexible OpenAPI 3 schema generation for Django REST framework.

freezegun. Let your Python tests travel through time

val-loader. val loader module for webpack

amplitudejs. AmplitudeJS: Open Source HTML5 Web Audio Library. Design your web audio player, the way you want. No dependencies required.

krew. 📦 Find and install kubectl plugins

typeshed. Collection of library stubs for Python, with static types

django-stubs. PEP-484 stubs for Django

Zappa. Serverless Python

audiopedia-project. JavaScript

quagga2-react-example. Showcasing Quagga2 in combination with ReactJS

quagga2. An advanced barcode-scanner written in Javascript and TypeScript - Continuation from https://github.com/serratus/quaggajs

django-ninja. 💨 Fast, Async-ready, Openapi, type hints based framework for building APIs

faas. OpenFaaS - Serverless Functions Made Simple

records. SQL for Humans™

flask. The Python micro framework for building web applications.

pgx. PostgreSQL driver and toolkit for Go

deploy-cloudrun. A GitHub Action for deploying services to Google Cloud Run.

setup-gcloud. A GitHub Action for installing and configuring the gcloud CLI.

cache. Cache dependencies and build outputs in GitHub Actions

testcontainers-go. Testcontainers for Go is a Go package that makes it simple to create and clean up container-based dependencies for automated integration/smoke tests. The clean, easy-to-use API enables developers to programmatically define containers that should be run as part of a test and clean up those resources when the test is done.

purgecss. Remove unused CSS

justforfunc. The repository for the YouTube series JustForFunc

source-map. Consume and generate source maps.

go101. An up-to-date (unofficial) knowledge base for Go programming self learning

misspell. Correct commonly misspelled English words in source files

vanilla-extract. Zero-runtime Stylesheets-in-TypeScript

gocui. Minimalist Go package aimed at creating Console User Interfaces.

sequelize. Feature-rich ORM for modern Node.js and TypeScript, it supports PostgreSQL (with JSON and JSONB support), MySQL, MariaDB, SQLite, MS SQL Server, Snowflake, Oracle DB, DB2 and DB2 for IBM i.

critical. Extract & Inline Critical-path CSS in HTML pages

bats-core. Bash Automated Testing System

go-analyzer. Go

cli. A Go based command line tool for exercism.org.

go. Exercism exercises in Go.

exercism. Crowd-sourced code mentorship. Practice having thoughtful conversations about code.

mapstructure. Go library for decoding generic map values into native Go structures and vice versa.

gocsv. The GoCSV package aims to provide easy CSV serialization and deserialization to the golang programming language

setup-go. Set up your GitHub Actions workflow with a specific version of Go

go-homedir. Go library for detecting and expanding the user's home directory without cgo.

gost. A gist client in go

go-github. Go library for accessing the GitHub v3 API

go-octokit. Simple Go wrapper for the GitHub API

wtf. WTF Dial is an example web application written in Go.

fsm. Finite State Machine for Go

jwt-go. ARCHIVE - Golang implementation of JSON Web Tokens (JWT). This project is now maintained at:

golang-tools-install-script. Simple Bash script to automate Go language tools single user installation or even removal.

type-fest. A collection of essential TypeScript types

ts-toolbelt. 👷 TypeScript's largest type utility library

wait-for-it. Pure bash script to test and wait on the availability of a TCP host and port

gin. Gin is a high-performance HTTP web framework written in Go. It provides a Martini-like API but with significantly better performance—up to 40 times faster—thanks to httprouter. Gin is designed for building REST APIs, web applications, and microservices.

gox. A dead simple, no frills Go cross compile tool

goreleaser. Release engineering, simplified

govalidator. [Go] Package of validators and sanitizers for strings, numerics, slices and structs

govalidator. Validate Golang request data with simple rules. Highly inspired by Laravel's request validation.

handlers. Package gorilla/handlers is a collection of useful middleware for Go HTTP services & web applications 🛃

goxc. a build tool for Go, with a focus on cross-compiling, packaging and deployment

go-sqlite3. sqlite3 driver for go using database/sql

browser. Package browser provides helpers to open files, readers, and urls in a browser window.

estree. The ESTree Spec

acorn. A small, fast, JavaScript-based JavaScript parser

pflag. Drop-in replacement for Go's flag package, implementing POSIX/GNU-style --flags.