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.
  • 179
  • 2
  • 8
  • v2.4.2
  • MIT License
@47ng/chakra-next

NPM Downloads

Last Week
94
Last Month
441
Last Year
4.8K
All Time
14K

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 ⚡️
  • 33
  • 4
  • 8
  • v3.1.1
  • MIT License
fastify-micro

NPM Downloads

Last Week
91
Last Month
244
Last Year
1.8K
All Time
5.2K

47ng/fastify-cron

Run cron jobs alongside your Fastify server 👷
  • 22
  • 1
  • 8
  • v1.3.0
  • MIT License
fastify-cron

NPM Downloads

Last Week
1.4K
Last Month
5.1K
Last Year
38K
All Time
47K

Security & Encryption#

47ng/session-keystore

Secure cryptographic key storage in the browser and Node.js
  • 44
  • 2
  • 23
  • v1.0.3
  • MIT License
session-keystore

NPM Downloads

Last Week
58
Last Month
308
Last Year
8.4K
All Time
30K

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 2019

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
  • 21
  • 1
  • 9
  • v1.1.0
  • MIT License
@47ng/cloak

NPM Downloads

Last Week
837
Last Month
2.7K
Last Year
7.8K
All Time
13K

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
  • 23
  • v0.3.1
  • MIT License
redact-env

NPM Downloads

Last Week
2.4K
Last Month
8.7K
Last Year
96K
All Time
985K

47ng/env-alias

Define aliases for environment variables and bind them at runtime
  • 2
  • 0
  • 22
  • v1.0.2
  • MIT License
env-alias

NPM Downloads

Last Week
28
Last Month
119
Last Year
816
All Time
3.5K

47ng/check-env

Check that required environment variables are set for your app
  • 20
  • 0
  • 8
  • v2.1.0
  • MIT License
@47ng/check-env

NPM Downloads

Last Week
198
Last Month
943
Last Year
25K
All Time
45K

Miscellaneous#

47ng/codec

Universal conversion of Uint8Array from/into UTF-8, base64url and hex in the browser and Node.js
  • 2
  • 0
  • 8
  • v1.1.0
  • MIT License
@47ng/codec

NPM Downloads

Last Week
878
Last Month
3.2K
Last Year
18K
All Time
39K

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.

  • 1230
  • 39
  • 7
  • v5.0.2
  • MIT License