I'm an indie game dev that mostly uses Raylib and C++/C.
My first ever relatively good project (Compared to my first ever one) was StockCrypto, where I explored the concept of way-too-long games and crypto investments.
In reality, my first ever project was NoteCracker, a small short rhythm game I made in one day. It's barely playable and just a few seconds long of gameplay.
I expect my next game to have way more lines of code (Although I'll expect it will be very hard to make as I'm quite lazy at writing code).