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@vasanthk
vasanthk / System Design.md
Last active February 12, 2026 04:23
System Design Cheatsheet

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?
@arianvp
arianvp / SSH_MACOS_SECURE_ENCLAVES.md
Last active February 11, 2026 23:50
Native Secure Enclaved backed ssh keys on MacOS

Native Secure Enclave backed ssh keys on MacOS

It turns out that MacOS Tahoe can generate and use secure-enclave backed SSH keys! This replaces projects like https://github.com/maxgoedjen/secretive

There is a shared library /usr/lib/ssh-keychain.dylib that traditionally has been used to add smartcard support to ssh by implementing PKCS11Provider interface. However since recently it also implements SecurityKeyProivder which supports loading keys directly from the secure enclave! SecurityKeyProvider is what is normally used to talk to FIDO2 devices (e.g. libfido2 can be used to talk to your Yubikey). However you can now use it to talk to your Secure Enclave instead!

//
// Regular Expression for URL validation
//
// Author: Diego Perini
// Created: 2010/12/05
// Updated: 2018/09/12
// License: MIT
//
// Copyright (c) 2010-2018 Diego Perini (http://www.iport.it)
//
@raysan5
raysan5 / custom_game_engines_small_study.md
Last active February 10, 2026 23:44
A small state-of-the-art study on custom engines

CUSTOM GAME ENGINES: A Small Study

a_plague_tale

WARNING: Article moved to separate repo to allow users contributions: https://github.com/raysan5/custom_game_engines

A couple of weeks ago I played (and finished) A Plague Tale, a game by Asobo Studio. I was really captivated by the game, not only by the beautiful graphics but also by the story and the locations in the game. I decided to investigate a bit about the game tech and I was surprised to see it was developed with a custom engine by a relatively small studio. I know there are some companies using custom engines but it's very difficult to find a detailed market study with that kind of information curated and updated. So this article.

Nowadays lots of companies choose engines like [Unreal](https:

@staltz
staltz / introrx.md
Last active February 10, 2026 02:15
The introduction to Reactive Programming you've been missing

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.


Effective Engineer - Notes

What's an Effective Engineer?

@rmtbb
rmtbb / iMessageAttachmentsLinksExtractor.sh
Created November 3, 2024 23:16
iMessage Attachments and Links Extractor for macOS
#!/bin/bash
# Define the main export folder
export_folder=~/Desktop/iMessages_Export
mkdir -p "$export_folder"
# Part 1: Generate the CSV file
echo "Generating CSV file..."
sqlite3 ~/Library/Messages/chat.db <<EOF
@tsiege
tsiege / The Technical Interview Cheat Sheet.md
Last active February 8, 2026 17:08
This is my technical interview cheat sheet. Feel free to fork it or do whatever you want with it. PLEASE let me know if there are any errors or if anything crucial is missing. I will add more links soon.

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






\

@NatElkins
NatElkins / cloud-init.yaml
Created March 8, 2025 22:09
cloud-init script for VPS
#cloud-config
# Enable automatic package updates and upgrades during cloud-init execution
package_update: true
package_upgrade: true
packages:
# Security and Hardening
- ufw
- fail2ban
@leonardofed
leonardofed / README.md
Last active February 7, 2026 05:19
A curated list of AWS resources to prepare for the AWS Certifications


A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.