I decided to go with this method because others would require me to edit additional files or add ropes directly via console, but that seemed a bit closer to cheating and would damage immersion. At least you still have to collect stuff, twines are not that common btw.
To install: Extract it to your mods folder, run the game, open the console and enter the command additem('Rope schematic') , then craft away!
Savegame compatible, highly unlikely to cause any conflicts. In the case of a conflict, prioritize this over other mods that modify gameplay/items/def_item_crafting_recipes.xml
note: To make space for rope recipe, another diagram (I guess it was dark steel plate) which was not used/commented out by the game is deleted. This should not affect anything as it was not craftable anyway.
If you are also bothered by overly zoomed-in minimap, try Minimap ZoomOut!
thanks to Skomski, Nalatroz, AloisManas and Sarcen for creating&fixing the console enabler