I built 5 apps... in 5 different languages // TRAIN BRAIN

I built 5 apps... in 5 different languages

To try everything Brilliant has to offer for free for a full 30 days, visit http://brilliant.org/ForrestKnight/ and get 20% off Brilliant’s annual premium subscription.
I built the same CLI app in five system programming languages: C, C++, Rust, Go, and Zig. Not to crown a winner—just to explore the tradeoffs like performance vs safety, simplicity vs power, minimalism vs… generics. It was a fun one. Enjoy!
If you're a developer, sign up to my free newsletter Dev Notes ? https://www.devnotesdaily.com/
If you're a student, checkout my Notion template Studious: https://notionstudent.com
Don't know why you'd want to follow me on other socials. I don't even post. But here you go.
?‍? GitHub: https://github.com/forrestknight
? Twitter: https://www.twitter.com/forrestpknight
? LinkedIn: https://www.linkedin.com/in/forrestpknight
? Instagram: https://www.instagram.com/forrestpknight

ForrestKnight

I document and share my experiences on topics including computer science & software engineering. I'm a full-time Software Engineer and a part-time YouTuber. My less nerdy activities include fishing, hunting, surfing, and snowboarding. I'm just here to hav...

Regretting Computer Science

33 Linux Commands EVERY Dev Should Know

Every Programmer's Favorite Laptop // you can win one

Why Rust Changed the Way I Think About Programming

I Tried Coding on Every OS // My Thoughts

Java Isn't Verbose // we just suck

Everything You Need to Know About Coding with AI // NOT vibe coding

AI is writing 90% of your code?

Java just got cleaner

Java is 30 Years Old // Here’s Why It’s Still Winning

Why Everyone's Switching to Rust (And Why You Shouldn't)

AI Has Changed How We Build Software // What You Need to Know

Everything You NEED to Know About TECH DEBT

My New PC // I have way too many.

My Linux Ubuntu Setup for Software Development

All Modern JS Frameworks Are Lying to You (But in a Good Way)

Netflix is Built on Java

Linux officially won.

Why You Never Finish Your Programming Projects

It’s Over. OpenAI Just Won Developers.

I built 5 apps... in 5 different languages

One Shot AI Coding

C# is Java done right

o3-mini refuses to code

I Tried Coding with the Top 5 AI Models... here are my thoughts.

How Software Engineers Actually Use AI

i no longer think you should learn to code.

25% of Programming Jobs are Gone

Coding with Gemini 2.5 Pro is actually insane

Java just got faster

Software Engineers are WRONG about AI "taking our jobs"

Vibe Coders Need to Learn from Spider-Man

Building My DREAM Home Office // It's Just Sticks Right Now

I finally got access to Claude Code... i'm not a fan

Rust is Killing C++? You might be right.

Actually coding with Claude 3.7 is actually insane, actually.

New Junior Developers Can't Actually Code

I Coded with Windsurf for a Week

Java Dev Tries Kotlin and Ktor for the First Time

Cargo First Impression

Rust Immutability

Why Devs Use Docker

Rust Borrow Checker

I Tried to Learn Rust (w/ Advent of Code)

7 JavaScript Changes You Missed in 2024

My Experience with Rust as a Java Dev

Everything You NEED to Know about Docker

7 Design Patterns EVERY Developer Should Know

Why I’m Learning Rust in 2024 (and new dev environment)

This is Why You Don't Roll Your Own Auth

3 Coding Projects to Break the Coding Barrier (w/ Instructions Included)

A Day in the Life of a Software Engineer

Coding a Realtime App with TypeScript (first match today at 12pm ET)

8 Data Structures Every Programmer Should Know

Programmers Need More Math

How to DESTROY Developer Productivity (avoid at all costs)

Everything You Need to Know about Git

Abstraction - Java OOP

Polymorphism - Java OOP

Inheritance - Java OOP

Encapsulation - Java OOP

Java Datatypes

Java Bytecode

Java Sucks

world's shortest Java course

I Coded with React for a Year

Lefties are Discriminated Against

Finding Your Passion

Zuck says "Open Source AI" is the Path Forward

um, actually it was a logic error that destroyed 8,513,869 computers

when a null pointer dereference breaks the internet lol

How to Make a Flowchart and Class Diagram (as a software developer) ft. Mermaid Chart

I Remade My First AI Program 7 Years Later… with a New Algorithm… in only 12 hours

I Made the Most Useless Machine You’ve Ever Seen (and TSA took it)

Easily Automate Your Developer Workflow

I Built a 3D Developer Portfolio Website // Three.js + React + Tailwind

Computer Scientists You NEED to Know About (Part 1)

So, you want to be a programmer?

A Complete Overview of DevOps

Win this RTX 4090 signed by Jensen Huang