This is not a conversation about guns. This is a conversation about items that have withstood abuse that are near unbreakable.
Some items I have heard referenced as AK47 of:
Gerber MP600: It’s a multi tool
Old Thinkpad Laptops
Mag lights
Toyota Hilux
I bought one specifically for DD-WRT firmware way back when. I now rock a gigabit mesh system but that wrt lasted almost a decade before tech moved on enough for me to switch.
I ran Tomato on mine. Liked it better than DD-WRT.