jordanst3wart

# System design links

681+ engineering blogs that will help you improve at system design:

1. Engineering @ Meta:

https://lnkd.in/gc9xnZQ8

2. OpenAI Software Engineering:

jordanst3wart

Common commands and workflows to use with jj

Largely from: https://jj-vcs.github.io/jj/latest/github/

# setup git repo
jj git init --colocate


# push commit

jordanst3wart

// Pieces extracted & trimmed from https://gitlab.com/CalcProgrammer1/OpenRGB
// Basic usage : g++ crgb.cc -o ledoff && ./ledoff
// For turning off RAM LEDs at startup : compile in root home directory & add "@reboot /root/ledoff" to "sudo crontab -e"

#include <cstring>
#include <iostream>
#include <linux/i2c-dev.h>
#include <linux/i2c.h>
#include <sys/ioctl.h>

jordanst3wart

#!/bin/bash
# add to .zshrc on mac
# assumes firefox developer edition installed
# uses $1 to search google
# works like `google "hi"`
google () {
	open "/Applications/Firefox Developer Edition.app" "https://google.com.au/search?q=$1"
}

jordanst3wart

Getting Started with Go

• The Go Tour - Entirely online, no need for any setup/install
• Setup your Go path and environment

Go Reading List

The following are a list of resources I find myself referring to:

• Dave Cheney's Getting Started Guide
• Structure and Style Guide
• Writing Effective Go Code

jordanst3wart

Typescript enums are bad, and unsafe


Typescript map key are compared by reference and not by value.
ie.
```
const map = new Map<any,string>()
map.set({},'hi')
map.set({},'hi2')
console.log(map.keys())

jordanst3wart

[user]
        name = fill me
        email = [email protected]

[alias]
        squash = "!f(){ git reset --soft $(git merge-base master $(git branch --show-current)) && git commit -m \"${1}\";};f"
        update = "!f(){ git checkout master && git pull && git checkout $(git branch --show-current) && git rebase;};f"
[push]
        autoSetupRemote = true
[pull]

jordanst3wart

// carely use get, and set, it's good with extension functions with no arguements, allowing you to not have the extra "()"
val foo2: Int get() {
    println("Calculating the answer")
    return 42
}

// just use this
fun getInt(): Int {

jordanst3wart

Reactive spring notes

• basically just wrap things in Mono, like Mono.just("someString"), flux is like a stream
• spring data reactive repositories main concern and still in incuberator, has good support for SQL, and some NoSQL, DynamoDB might be hard at the moment. Is better performing that JDBC (see 3.) it's largely based around R2DBC (see 1.), had issues with h2-console, and schema.sql/data.sql seems to be handled differently
• can apparently handle 1.5 times the number of requests of Servlet stack (see 2.) with a small server, has lower memory, and cpu footprint
• JSON isn't really streamed but Flux is useful for that
• code can look really similar to what you are used to (link code)
• reactive means basically non-blocking
• using RouterFunctions routing is an option, but maybe not a good one (https://spring.io/guides/gs/reactive-rest-service/)

jordanst3wart

#!/bin/bash

path="/tmp" # /home/pi/Documents

if [ -f "$path/pid.txt" ]; then
    echo "pid file found. Exiting..."
    exit 0
fi

echo "running" > "$path/pid.txt"