Coding with Lewis

How Much Does it Cost to Scale an App to 100,000 Users?

I Revisited My Project That Broke YouTube Shorts

40 Programming Projects That Will Make You a Better Developer

How We Made the "My Bank wanted $17.83 So I Used Python Instead" Video

Google Refused to Add this Feature So I Did It Myself

How Notion Handles 200 BILLION Notes (Without Crashing)

How Discord Handled the Worlds Largest Server

This App Wanted $700 So I Built it Myself with Python

I Built the Same App in ALL Versions of PHP (1995-2025)

I Took a Basic Todo App and Made It Cost $2000/Month

The 2 Types of Programmers

5 Software Errors That Will Destroy Your Code

I Overengineered a CI/CD Pipeline with 69 Absurd Steps

How Uber Handles TRILLIONS of Transactions

I Asked My Subscribers To Make The WORST Apps Possible

Inside a Data Center with 90,000 Servers

I Regret Buying an Ultrawide Monitor (as a programmer)

I Built an AI That Does My Work For Me

My Bank Wanted $17.63 so I Used Python Instead.

35 Things Every Programmer Should Know

I Trained an AI with 10,000 Memes

10 Sorting Algorithms Easily Explained

These Apps Cost $140. So I Rebuilt them for FREE.

40 APIs Every Developer Should Use (in 12 minutes)

I Created a Fake Twitter with AI Users

We Need to Talk about Developer Influencers

I Built a Livestream where AI's Chat 24/7

I Gave My Terrible Trading Bot $10,000 to Trade Stocks

How Instagram Grew to 14,000,000 Users With 3 Devs

When 10,000 Software Engineers Work on the Same Code