Yeah, I was making a Nixie tube clock with an STM32 and I was debating what I should use for my RNG...

I was trying to write a decent implementation for a LFSR PRNG and my friend was like fuck that, STM32 has a HW multiplier, just use an LCG and I wrote one from memory with like 2 lines. Just needed to grab the magic constants from wikipedia... (which I needed to anyway if I wanted to use an LFSR)

Strongly recommended, if you don't care about quality, LCG is simply unbeatable in terms of quick n dirtiness