I made this to craft all the inserters : r/factorio
Module Inserter Simplified - Factorio Mods
16.36] Bots fly to target when materials became unavailable - Factorio Forums
Compact, perfect ratio Module setup (blueprint in comments) : r/factorio
Schall Inserters - Factorio Mods
Factorio Prints: Inserters Manufacturing
wheybags][0.16.21]Circumventing prod module restriction using beacons - Factorio Forums
Apparently, inserters can grab modules from beacons. Almost 400 hours in and just learning this. Not sure it's very useful (especially for vanilla), but could have interesting ideas for mods with changing
MOD 0.15] ModuleInserter 2.0.0 - Factorio Forums
Factorio Prints: Limited Modules production with inidicators
TIL: Inserters take modules out of beacons. I replaced an electric furnace with a beacon, but didn't remove the inserter. Took me a minute to figure out why the furnaces beside weren't