abdes-zakari

Add Git Branch Name to Terminal Prompt on Mac (Big Sur)

Open ~/.zprofile or ~/.zshrc in your favorite editor and add the following content to the bottom. ( if the file ~/.zprofile or ~/.zprofile does not already exist create it)

# Git branch in prompt.
function parse_git_branch() {
    git branch 2> /dev/null | sed -n -e 's/^\* \(.*\)/[\1]/p'
}

fernandoaleman

Problem

Installing mysql2 gem errors on Apple silicon M1, M2 or M3 Mac running macOS Sonoma.

Solution

Make sure mysql-client, openssl and zstd are installed on Mac via Homebrew.

Replace mysql-client with whichever mysql package you are using

starbeast

Ruby - https://github.com/RubyCrypto/rbnacl
JavaScript - https://github.com/dchest/tweetnacl-js

## FE encrypt -> BE decrypt
# FE
const { publicKey, secretKey } = nacl.box.keyPair();
// every time you encrypt change the nonce
const nonce = nacl.randomBytes(nacl.secretbox.nonceLength);
const encodedNonce = nacl.util.encodeBase64(nonce);
const encodedPublic = nacl.util.encodeBase64(publicKey);

WJWH

# This server demo does a socket hijack in Rack and then saves the socket to a global variable
# to prevent it from being GCed when the Puma thread ends. It will then write "BEEP" to each 
# socket every ten seconds to prevent the connection timing out. During testing, it easily 
# handled up to 65523 connections, after which it ran into the `ulimit` for open file descriptors.
# The bit with the waiting area is there because a normal `Set` is not thread safe and it would
# drop socket due to race conditions. The `Queue` is thread safe and will make sure all sockets
# are preserved.

# run with `rackup -q -p 8000 -o 0.0.0.0 c10k.ru`
# testing: install `ab` and then run `ab -c 20000 -n 20000 <ip adress of server>:8000/

pcreux

group :production do
  gem 'unicorn'

  # Enable gzip compression on heroku, but don't compress images.
  gem 'heroku-deflater'

  # Heroku injects it if it's not in there already
  gem 'rails_12factor'
end