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