Typography based T-shirt designs - computer hacker humor

Status: Closed
Prize: $40
Entries Received: 11
Winner: FredrikWei

Winner

Contest Brief

I'm looking for typography designs for four different T-shirts that will be suitable to sell on an e-commerce platform like Shopify, Teespring, etc.

The theme for all these five shirts is "programmer humor"; or "computer hacker humor". So what means is: 1) only sans-serif fonts, 2) Very minimalist/simple design, 3) If you use any clipart, it has to be related to computers or computer hackers . I attached an example of something very similar to one of the designs I am looking for (the example I attached is for weighlifting, not programming, but hopefully this gives you an idea of the simple style I like).

Finally, here is the text for the designs I need. Be sure to preserve the spelling exactly as you see it. For design 2 you must use lowercase for the font.

Design 1
Do you even code bro?

Design 2
sudo rm -rf /

Design 3
Real programmers start from zero

Design 4
There are only two hard problems in computer science: cache invalidation, naming things, and off by one errors.