Image is to big, its a instance issue, some instances don’t allow uploads at all and most impose size restrictions, try using a hoster outside of lemmy (postimages.org, catbox.moe etc.)
I write the shit in the explanation before programming it, its a way to construct a code in human language and logic, with my manual you could program the exact same program in another programming language. (i cant show it because what i program is company secret, including the manual) and yes its kinda boring but everyone is grateful for it and for the things i do i need to make shure its never failing, so its checked by several different people, and such a manual helps a lot for everyone.