An updated version of MomoTweak (https://mods.factorio.com/mod/MomoTweak), done with permission of Momo.
If you ever wanted to turn Bobs+Angels up to 11, this is the mod for you. Includes integration with MSP 30 Science for an ever greater challenge (see the gallery).
This mod adds in many intermediate products to everything from circuits, to buildings, to science.
If you're playing with 30 Science, the 'Remove packs from research cost (Game Progression Fix)' and '30 Packs are Intermediates' options are required. 30 Science Packs are now ingredients in the normal science packs. Trying to have them in the cost twice will create tech prerequisite issues.
I've been updating this as my factory goes, so there may be a few issues late game; let me know if so.