Open Source

This page lists some of the open source packages and repositories I have published or contribute to.

Most of them are published under my company 47ng.

Frontend#

My tech stack of choice is Next.js and Chakra UI.

Next.js makes it super easy to build static or dynamic webapps, depending on what is needed.

Chakra UI offers accessibility out of the box with great default styles, that are easy to override thanks to the styled-system approach.

47ng/chakra-next

Opinionated design system for React, based on Chakra UI + Next.js, written in TypeScript.
  • 53
  • 2
  • 2
  • v2.4.2
  • MIT License
@47ng/chakra-next

NPM Downloads

Last Week
198
Last Month
878
Last Year
7.2K
All Time
7.2K

Backend#

I like to use Fastify to build backend services in Node.js.

What I like about it:

47ng/fastify-micro

Opinionated Node.js microservices framework built on Fastify ⚡️
  • 10
  • 0
  • 1
  • v2.2.0
  • MIT License
fastify-micro

NPM Downloads

Last Week
63
Last Month
469
Last Year
3K
All Time
3K

47ng/fastify-cron

Run cron jobs alongside your Fastify server 👷
  • 5
  • 0
  • 1
  • v1.1.2
  • MIT License
fastify-cron

NPM Downloads

Last Week
210
Last Month
942
Last Year
5.7K
All Time
5.8K

Security & Encryption#

47ng/session-keystore

Secure cryptographic key storage in the browser and Node.js
  • 8
  • 1
  • 0
  • v1.0.3
  • MIT License
session-keystore

NPM Downloads

Last Week
604
Last Month
2.1K
Last Year
10K
All Time
11K

I wrote an article about how I came to build session-keystore:

How To Store End-to-End Encryption Keys In The Browser

13 December 20190

e2eesecurity
End-to-end encrypted applications use cryptographic keys that don't leave the client, so how do we store them securely in the browser ?

47ng/cloak

Serialized AES-GCM 256 encryption, decryption and key management in the browser & Node.js
  • 4
  • 0
  • 1
  • v1.0.1
  • MIT License
@47ng/cloak

NPM Downloads

Last Week
89
Last Month
569
Last Year
4.2K
All Time
5K

Environment Variables#

The Twelve Factor App model uses environment variables extensively for configuration and passing runtime data to a web app.

However, there are things to look out for when working with environment variables, so I built a few packages to make their management easier and more secure:

47ng/redact-env

Redact values of critical environment variables in a string
  • 3
  • 0
  • 0
  • v0.3.1
  • MIT License
redact-env

NPM Downloads

Last Week
2.9K
Last Month
11K
Last Year
608K
All Time
841K

47ng/env-alias

Define aliases for environment variables and bind them at runtime
  • 1
  • 0
  • 0
  • v1.0.2
  • MIT License
env-alias

NPM Downloads

Last Week
32
Last Month
266
Last Year
1.8K
All Time
2.5K

47ng/check-env

Check that required environment variables are set for your app
  • 7
  • 0
  • 0
  • v2.0.2
  • MIT License
@47ng/check-env

NPM Downloads

Last Week
534
Last Month
1.8K
Last Year
9.9K
All Time
11K

Miscellaneous#

47ng/codec

Universal conversion of Uint8Array from/into UTF-8, base64url and hex in the browser and Node.js
  • 1
  • 0
  • 2
  • v1.0.1
  • MIT License
@47ng/codec

NPM Downloads

Last Week
731
Last Month
1.6K
Last Year
9.2K
All Time
9.4K

FortySevenEffects/arduino_midi_library

My longest-running open-source project: MIDI for Arduino.

I learned programming in C++ in 2008 with this project and discovered my passion for open-source software.

  • 928
  • 33
  • 6
  • v5.0.2
  • MIT License