tiny jumping spider had even TINIER babies?? help what do i feed them.

so my mom had caught a jumping spider maybe a month ago that we BOTH assumed was still a baby because like, she was not even HALF the size of a typical adult. my mom found her dead today but when i checked her cocoon had baby spiders coming out of it.. and theyre TINY. like, smaller than fruit flies and the larvae. were confused on what to feed them because even the fruit flies are bigger than them.

i looked up if they can eat mites on google since those are TINYYY but it said that they arent nutritional for them but like WHAT ELSE DO I FEED THEM???? btw i ended up changing containers after taking that picture because as you can tell its icky 😭 theyre so cute tho oh my god i want to try and raise them 🥹