Linux bookmarks

Bitcoin / cryptocurrency related:

• Bit-wasp – php library to let you generate a bunch of different types of keys for HD bitcoin wallets. As used in my bitcoin woocommerce gateway

• HD-wallet-derive – php script to generate addresses, pubkeys, privkeys, and more for Bitcoin (BTC), Litecoin (LTC), Doge and a bunch more.

• https://github.com/Bit-Wasp/bitcoinconsensus-php

• BIP39 Menemonic code converter (generate BIP39 compliant menemonics, keys etc, derivation path info)

• Electrum commandline stuff

• Electrum change gap limit (read- ahead by more addresses because derived addresses not yet being seen but are legitimae

• NoNodePay – the shop system from @coinables which sorta got me started with bitcoin-related coding

• Bitcoin UTXO dump

• ECC for PHP

Cryptography-related

• OpenPGP – javascript PGP library and github of the same

• kbpgp.js – Keybase’s Javascript PGP implementation

Server stuff

• twitter php library – https://twitteroauth.com/

• Apache2buddy – https://github.com/richardforth/apache2buddy

• How to Make and Download a Raw Linux HDD Image Remotely Using SSH and dd in Linux

• https://www.vultr.com/docs/requirements-for-uploading-an-os-iso-to-vultr

• How to self-host a Jitsi Meet server with password protection

• Setup matrix, riot (now elements) and Jitsi (walkthrough)

• Upgrade ubuntu 16.04 to 18.04 from terminal

• Install PHP 7.4 on ubuntu

• CCbill test card numbers

Woocommerce

• Woocommerce: how do I add metadata to a cart item?

• How do I query for posts by partial meta key? (untested)
• Getting all values for a custom field key (cross-post) (untested)

MIDI

• Web-MIDI examples

• Arduino Midi serial interface and sample code