for those excited about tiny ELF executables, or tiny programs in general, check out the Lovebyte size-coding demoparty happening next weekend. It's likely there will be a few tiny ELF entries there.
I've written a few sizecoded raspberry pi entries, there's even a writeup of one of them in tmp.out where I loaded some code into the ELF headers https://tmpout.sh/3/08.html
https://www.pouet.net/prodlist.php?type[]=32b&type[]=64b&typ...
I think I am the "inventor" of the first 64 and 32 byte intro competitions. (Just checked, we ran a 64 byte competition at the 0a000h 2002 and added 32 byte in 2003.) See https://0a000h.de/2002/ and https://0a000h.de/2003/ - releases are on scene.org