Hans-Kristian Koren

mistral-vibe. Minimal CLI coding agent by Mistral

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

async-react. Workgroup for Modern React features.

capnweb. JavaScript/TypeScript-native, low-boilerplate, object-capability RPC system

react-native-mmkv. ⚡️ The fastest key/value storage for React Native. ~30x faster than AsyncStorage!

django-deprecated-field. A Django field util that allows you to mark model fields as deprecated

umami. Umami is a modern, privacy-focused analytics platform. An open-source alternative to Google Analytics, Mixpanel and Amplitude.

scalar. Scalar is an open-source API platform:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　🌐 Modern REST API Client　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　📖 Beautiful API References　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　✨ 1st-Class OpenAPI/Swagger Support

hurl. Hurl, run and test HTTP requests with plain text.

mastra. Mastra is the modern TypeScript framework for AI-powered applications and agents.

nrss. Get RSS feeds for NRK's vendor locked "podcasts".

skattemeldingen. Kode og spesifikasjoner til partnere/leverandører av sluttbrukersystemleverandører for årsoppgjør/skattemeldingen.

skattemelding. Elektronisk levering av skattemelding

monolith. A Lightweight Recommendation System

sonda. Universal visualizer and analyzer for JavaScript and CSS. Compatible with most bundlers and frameworks

zxcvbn. Low-Budget Password Strength Estimation

magnetron. A zero-dependency ML framework in C with a modern Python API for full control over execution and memory.

postgres-uuidv7-sql. Pure SQL functions to use UUIDs v7 in PostgreSQL

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

arktype. TypeScript's 1:1 validator, optimized from editor to runtime

pglite. Embeddable Postgres with real-time, reactive bindings.

otplib. One Time Password (OTP) / 2FA for Node.js and Browser - Supports HOTP, TOTP and Google Authenticator

tremor-npm. React components to build charts and dashboards

waku. ⛩️ The minimal React framework

rye. a Hassle-Free Python Experience

hermitage. What are the differences between the transaction isolation levels in databases? This is a suite of test cases which differentiate isolation levels.

loro. Make your JSON data collaborative and version-controlled with CRDTs

dekit. Run multiple commands in parallel

typeid. Type-safe, K-sortable, globally unique identifier inspired by Stripe IDs

devtools. Replay.io DevTools

hyperfine. A command-line benchmarking tool

noulith. *slaps roof of [programming language]* this bad boy can fit so much [syntax sugar] into it

superjson. Safely serialize JavaScript expressions to a superset of JSON, which includes Dates, BigInts, and more.

satori. Enlightened library to convert HTML and CSS to SVG

pg_jsonschema. PostgreSQL extension providing JSON Schema validation

pg-structure. Get PostgreSQL database structure as a detailed JS Object.

sanity. Sanity Studio – Rapidly configure content workspaces powered by structured content

think-async. 🌿 Exploring cooperative concurrency primitives in Python

react-18. Workgroup for React 18 release.

proposal-error-cause. TC39 proposal for accumulating errors

perfect-freehand. Draw perfect pressure-sensitive freehand lines.

esbuild. An extremely fast bundler for the web

remotion. 🎥 Make videos programmatically with React

headlessui. Completely unstyled, fully accessible UI components, designed to integrate beautifully with Tailwind CSS.

server-components-demo. Demo app of React Server Components.

django-postgres-audit-log. Audit logging for Django based on Postgres triggers

also-radio. Ray-marched visualizer for Also Radio

react-native-bottom-sheet. A performant interactive bottom sheet with fully configurable options 🚀

ts-sql. A SQL database implemented purely in TypeScript type annotations.

biip. 📦 Biip interprets the data in barcodes.

Valetudo. Cloud replacement for vacuum robots enabling local-only operation

Marketing-for-Engineers. A curated collection of marketing articles & tools to grow your product.

react-native-scroll-bottom-sheet. Cross platform scrollable bottom sheet with virtualisation support, native animations at 60 FPS and fully implemented in JS land :fire:

react-polymorphic-box. Building blocks for strongly typed polymorphic components in React.

einmal. ⏱ The two-factor authentication app you deserve

restyle. A type-enforced system for building UI components in React Native with TypeScript.

use-abortable-promise. useAbortablePromise() React Hook

stoppable. Node's `server.close` the way you expected it to work.

pizza-dough. This recipe is dedicated to helping you make the best possible pizza dough for Neapolitan pizza.

placeit. 📍Get closest to the right answer – in meters!

faktory_worker_node. a node.js client and worker framework for Faktory job server

cls-hooked. cls-hooked : CLS using AsynWrap or async_hooks instead of async-listener for node 4.7+

local-first. data syncing, storage, and collaboration. that works

react-stockcharts. Highly customizable stock charts with ReactJS and d3

slang. 🎤 a simple audio programming language implemented in JS

useripple. A React Hook for adding ripple effect

openchakra. ⚡️ Full-featured visual editor and code generator for React using Chakra UI

blocks. A JSX-based page builder for creating beautiful websites without writing code

prisma. Next-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB

chakra-ui. Chakra UI is a component system for building SaaS products with speed ⚡️

pushpin. A collaborative corkboard app

http-cache-semantics. RFC 7234 in JavaScript. Parses HTTP headers to correctly compute cacheability of responses, even in complex cases

react-native-sqlite-storage. Full featured SQLite3 Native Plugin for React Native (Android and iOS)

aos. Animate on scroll library

norwegian-design-systems. A curated list of design systems, pattern libraries, and styleguides from Norway

svgo. ⚙️ Node.js tool for optimizing SVG files

excalidraw. Virtual whiteboard for sketching hand-drawn like diagrams

the-bread-code. Learn how to master the art of baking the programmer way.

hypermerge. Build p2p collaborative applications without any server infrastructure in Node.js

automerge-classic. A JSON-like data structure (a CRDT) that can be modified concurrently by different users, and merged again automatically.

teletype-crdt. String-wise sequence CRDT powering peer-to-peer collaborative editing in Teletype for Atom.

react-three-fiber. 🇨🇭 A React renderer for Three.js

kimuraframework. Write web scrapers in Ruby using a clean, AI-assisted DSL. Kimurai uses AI to figure out where the data lives, then caches the selectors and scrapes with pure Ruby. Get the intelligence of an LLM without the per-request latency or token costs.

faktory. Language-agnostic persistent background job server

core. A toolchain for building scalable, enterprise-ready component systems on top of TypeScript and Web Component standards. Stencil components can be distributed natively to React, Angular, Vue, (+ more) and traditional web applications from a single, framework-agnostic codebase.

fbt. A JavaScript Internationalization Framework

restana. Restana is a lightweight and fast Node.js framework for building RESTful APIs.

diem. Diem’s mission is to build a trusted and innovative financial network that empowers people and businesses around the world.

About-SwiftUI. Gathering all info published, both by Apple and by others, about new framework SwiftUI.

rn-diff-purge. Easier React Native upgrades by clearly exposing changes from a version to another. :rocket: And what better way than to purge, init, then diff? Spoiler: there's no better way. 😎

io-ts. Runtime type system for IO decoding/encoding

json-schema-spec. The JSON Schema specification

runtypes. Runtime validation for static types

cross-platform-node-guide. 📗 How to write cross-platform Node.js code

nullthrows. flow typed nullthrows

aurora-imui. General IM UI components. Android/iOS/RectNative ready. 通用 IM 聊天 UI 组件，已经同时支持 Android/iOS/RN。

Detox. Gray box end-to-end testing and automation framework for mobile apps

react-native-screens. Native navigation primitives for your React Native app.

jest-react-profiler. Jest helpers for working with the React Profiler API.

react. Cheatsheets for experienced React developers getting started with TypeScript

react-native-testing-library. 🦉 Simple and complete React Native testing utilities that encourage good testing practices.

devhub. TweetDeck for GitHub - Filter Issues, Activities & Notifications - Web, Mobile & Desktop with 99% code sharing between them

ajv. The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)

fx. Terminal JSON viewer & processor

screenshot-maker. Generate nicer App Store screenshots

carlo. Web rendering surface for Node applications

guide. Kubernetes clusters for the hobbyist.

skip. A programming language to skip the things you have already computed

passforios. Pass for iOS - an iOS client compatible with Pass command line application.

verdaccio. A lightweight Node.js private proxy registry

mdx-deck. ♠️ React MDX-based presentation decks

avsc. Avro for JavaScript :zap:

kafka-life-stream. Kafka Life Stream: Activity Tracking (Strava), Open Banking (Sbanken) and what not

absinthe. The GraphQL toolkit for Elixir

react-native-google-analytics-bridge. React Native bridge to the Google Analytics libraries on both iOS and Android.

pushpin. A proxy server for adding push to your API, used at the core of Fastly's Fanout service

experimental-transitioner. A navigator for custom screen transitions with React Navigation and React Native

cli-editor. A wrapper around the default terminal editor that can edit any object.

guess. 🔮 Libraries & tools for enabling Machine Learning driven user-experiences on the web

react-native-update-version. Increment versions in React Native applications (iOS, Android and package.json)

workflow. Workflow-centric workspace manager

reach-ui. The Accessible Foundation for React Apps and Design Systems

jest-image-snapshot. ✨ Jest matcher for image comparisons. Most commonly used for visual regression testing.

iap-receipt-validator. Validate In-App Purchases (IAP) on App Store using fetch and es6/7

router. JavaScript

flow. Adds static typing to JavaScript to improve developer productivity and code quality.

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

html-sketchapp-cli. Quickly generate Sketch libraries from HTML documents and living style guides, powered by html-sketchapp

react-testing-library. 🐐 Simple and complete React DOM testing utilities that encourage good testing practices.

rifm. React Input Format & Mask, tiny (≈800b) component to transform any input component into formatted or masked input. Supports number, date, phone, currency, credit card, etc

resources. :book: Huge curated collection (archive) of links of Tech, Science, Economics, Politics, Life, Philosophy, Conferences, Videos and much more resources from everyday surfing. :star: Since October 21, 2017.

FluidTransitions. Fluid Transitions for React Navigation

releases. React Native releases

theredoc. Makes your multi-line JavaScript strings look good

css-blocks. High performance, maintainable stylesheets.

react-copy-write. ✍️ Immutable state with a mutable API

rebench.github.io. Benchmarking done Reasonably

proposal-object-from-entries. TC39 proposal for Object.fromEntries

react-translations-provider. React render props component for setting translations

graphql-java-tools. A schema-first tool for graphql-java inspired by graphql-tools for JS

js-git. A JavaScript implementation of Git.

node-keytar. Native Password Node Module

react-native-typography. Pixel–perfect, native–looking typographic styles for React Native ✒️

glamor. inline css for react et al

jest-glamor-react. Jest utilities for Glamor and React

bs-nice. css-in-reason

flow-static-land. [DEPRECATED, please check out fp-ts] Implementation of common algebraic types in JavaScript + Flow

pragmatic-functional-javascript. The "Pragmatic Functional JavaScript" book

cypress. Fast, easy and reliable testing for anything that runs in a browser.

parcel. The zero configuration build tool for the web. 📦🚀

js-lingui. 🌍 📖 A readable, automated, and optimized (2 kb) internationalization for JavaScript

graphql-import. Import & export definitions in GraphQL SDL

glamorous. DEPRECATED: 💄 Maintainable CSS with React

kubernetes-the-hard-way. Bootstrap Kubernetes the hard way. No scripts.

rx-node. RxJS Bindings for Node.js and io.js

hot-redux-chassis. Modern React/Redux/RxJS application using all the latest and greatest stuff from the community 🔥

mopidy-anjuna. No-skip-queue Mopidy Web Client

primitive. Reproducing images with geometric primitives.

Inquirer.js. A collection of common interactive command line user interfaces.

CycleGAN. Software that can generate photos from paintings, turn horses into zebras, perform style transfer, and more.

react-intersection-observer. React component for the Intersection <Observer /> API

rx-sandbox. Marble diagram DSL based test suite for RxJS

rxjs-spy. A debugging library for RxJS

prisma1. 💾 Database Tools incl. ORM, Migrations and Admin UI (Postgres, MySQL & MongoDB) [deprecated]

lego-webapp. Frontend for abakus.no

metascraper. Get unified metadata from websites using Open Graph, Microdata, RDFa, Twitter Cards, JSON-LD, HTML, and more.

testcheck-js. Generative testing for JavaScript

naivecoin. A cryptocurrency implementation in less than 1500 lines of code

caretaker. A tiny script written in reason that will send you nice notifications to take care of you. 🤖

gatsby. React-based framework with performance, scalability, and security built in.

proposal-pipeline-operator. A proposal for adding a useful pipe operator to JavaScript.

babel-plugin-console. Babel Plugin that adds useful build time console functions 🎮

react-native-fast-image. 🚩 FastImage, performant React Native image component.

apollo-tooling. ✏️ Apollo CLI for client tooling (Mostly replaced by Rover)

every-programmer-should-know. A collection of (mostly) technical things every software developer should know about

common-tags. 🔖 Useful template literal tags for dealing with strings in ES2015+

elixir-style-guide. An opinionated Elixir style guide

proposal-optional-chaining. HTML

react-app-rewired. Override create-react-app webpack configs without ejecting

rescript-react-native. ReScript bindings for React Native

vapor. 💧 A server-side Swift HTTP web framework.

responsive-html-email-template. A free simple responsive HTML email template

react-native-gesture-handler. Declarative API exposing platform native touch and gesture system to React Native.

chromeless. 🖥 Chrome automation made simple. Runs locally or headless on AWS Lambda.

pg-error-constants. PostgresQL error constants for use with Node.js

proposal-undefined-coalescing-operator. Undefined Coalescing Operator proposal for ECMAScript

react-native-keyboard-input. Use your own custom input component instead of the system keyboard

animated. Declarative Animations Library for React and React Native

react-native-image-progress. Progress indicator for networked images in React Native

react-native-photo-view. Pinch-to-zoom view for React Native (both iOS and Android)

travel-RN. This is an experiment to learn how Animated api of React Native works.

react-native-share-extension. react-native as an engine to drive share extension

react-native-share-menu. A module for React Native that adds your app to the share menu of the device

react-native-easy-gestures. React Native Gestures. Support: Drag, Scale and Rotate a Component.

react-native-interactable. Experimental implementation of high performance interactable views in React Native

storybook. Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

klipse. Klipse is a JavaScript plugin for embedding interactive code snippets in tech blogs.

graphql-rss-parser. A microservice that parses rss feeds and makes it available as grahpql service.

elm-spa-example. A Single Page Application written in Elm

primus. :zap: Primus, the creator god of the transformers & an abstraction layer for real-time to prevent module lock-in.