you are a real programer if you do:

all of this

*Build your own firmware/bootloader

*Build your own FPGA/ASIC

*Build your own sound library/engine/driver

*Build your own GUI Toolkit/graphics library

*Build your own font (vector and bitmap)

*Build your own character encoding standard (à la ASCII, Unicode, etc.)

*Build your own MMO

*Build your own protocols

*Build your own mouse

*Build your own keyboard (final test of comutation teohry)

*Build your own mail client and server

*Build your own VoIP client (à la Discord, Skype, etc.)

*Build your own instant messenger ( à la IRC, AOL, etc.)

*Build your own markup/typesetting language

*Build your own compiler, interpreter and assembler

*Build your own machine code & microcode

*Build your own filesystem

*Build your own softmodem

*Build your own SDR

https://www.youtube.com/watch?v=G8BIYIsh-4I

*Build your own BBS

*Build your own painting application/photo editor (YEP , with matriz at low level)

*Build your own cryptography (RSA,cesar and more)

*Build your own compression algorithms (yrp)

https://www.youtube.com/watch?v=NjhJJYHpYsg

*Build your own webcam and webcam client

*Build your own virtual voice assistant (i do with chatgpt integration)

*Build your own girlfriend ;)

* 3D Renderer (ray tracing and ray casting)

* Augmented Reality (i read a ariticle with a card)

* BitTorrent Client (i know)

* Blockchain / Cryptocurrency (yes)

* Bot (telegram bot)

* Command-Line Tool (yes)

* Database

* Docker (i know how)

* Emulator / Virtual Machine (yes, but )

* Front-end Framework / Library

* Game (hangman)

* Git (i can do it but like a graph)

* Network Stack

* Neural Network (yep)

* Operating System

* Physics Engine

* Programming Language (a lisp)

* Regex Engine

* Search Engine

* Shell (yep)

* Template Engine (is so easy)

* Text Editor (yep)

* Visual Recognition System

* Voxel Engine (yep)

* Web Browser (i undestend)

* Web Server

reference:

https://github.com/codecrafters-io/build-your-own-x/blob/master/README.md