Useful readings to write your first filter

[lnminente]

I'm full ears and this was only a slighly modification, an update. Only replacing old data for a link to a better place. I think it would be a good idea to have this thread well arranged for the needs new people could have. They could need something but don't ask here for the possibility it was asked before and they didn't read the full thread. The butterfly effect, a big thread here could make us lose future important people