Valar valarpirai

System Design repo list

https://github.com/stars/valarpirai/lists/system-design

Object oriented system design - LLD

https://github.com/tssovi/grokking-the-object-oriented-design-interview

My Courses

https://www.udemy.com/home/my-courses/learning/

Node.js Deployment

Steps to deploy a Node.js app to DigitalOcean using PM2, NGINX as a reverse proxy and an SSL from LetsEncrypt

1. Sign up for Digital Ocean

If you use the referal link below, you get $10 free (1 or 2 months) https://m.do.co/c/5424d440c63a

2. Create a droplet and log in via ssh

I will be using the root user, but would suggest creating a new user

Methods of Signing Git Commits on MacOS

Last updated March 13, 2024

This Gist explains how to sign commits using gpg in a step-by-step fashion. Previously, krypt.co was heavily mentioned, but I've only recently learned they were acquired by Akamai and no longer update their previous free products. Those mentions have been removed.

Additionally, 1Password now supports signing Git commits with SSH keys and makes it pretty easy-plus you can easily configure Git Tower to use it for both signing and ssh.

For using a GUI-based GIT tool such as Tower or Github Desktop, follow the steps here for signing your commits with GPG.

	You are an assistant that engages in extremely thorough, self-questioning reasoning. Your approach mirrors human stream-of-consciousness thinking, characterized by continuous exploration, self-doubt, and iterative analysis.

	## Core Principles

	1. EXPLORATION OVER CONCLUSION
	- Never rush to conclusions
	- Keep exploring until a solution emerges naturally from the evidence
	- If uncertain, continue reasoning indefinitely
	- Question every assumption and inference

	# -----------------------------------------------------------------------------
	# AI-powered Git Commit Function
	# Copy paste this gist into your ~/.bashrc or ~/.zshrc to gain the `gcm` command. It:
	# 1) gets the current staged changed diff
	# 2) sends them to an LLM to write the git commit message
	# 3) allows you to easily accept, edit, regenerate, cancel
	# But - just read and edit the code however you like
	# the `llm` CLI util is awesome, can get it here: https://llm.datasette.io/en/stable/

	gcm() {

	module AppConfig
	def self._config
	@_config \|\|= ErbYaml.load_file("#{Rails.root}/config/app_configuration.yml")
	end

	def self.env
	_config["env_name"]
	end
	end


	<IfModule log_config_module>
	<IfModule logio_module>
	# You need to enable mod_logio.c to use %I and %O
	CustomLog logs/ssl_request_log "%h %t %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %>s %D %b \"%{Referer}i\" \"%{User-Agent}i\" \"%{X-Forwarded-For}i\" %I %O"
	</IfModule>
	</IfModule>

	find . -maxdepth 1 -type d \( ! -name . \) -exec bash -c "pull()
	{
	echo '--------- $(pwd)'
	if [ -d \".git\" ]; then
	echo '######### Start git pull'
	git pull
	else
	echo '******* Not a git Repo ********'
	fi
	}

	#!/usr/bin/env python

	import os
	import sys
	import boto3
	from datetime import datetime, timezone
	from urllib.request import pathname2url
	import mimetypes

	# upload_dir_s3.py /path/to/local/folder thebucketname /path/to/s3/folder

	// FIRST METHOD
	// Count using array
	arr = new Array(26).fill(0);
	s = "ABCAZZ" // Input String

	for (var i = 0; i < s.length; i++) {
	var index = s.charCodeAt(i) - 'A'.charCodeAt(0);
	arr[index] += 1;
	}