Can you change the Optical fiber internal name so that the mod does not create a solflock with "Silica & Silicon".
Can probably change the entity to "Optical cable". Change the ingredients to "Optical fiber" (Silica & Silicon) and "Silicon carbide"
You can remove the silicon tech if "Silica & Silicon" is present. Meaning you'll need to make the "Heat and radiation insulation" and "Silicon cells" techs require "Planet descovery Moshine" if "Silica & Silicon" is present. You can also change "Silicon ore" to require Silica, or 5 Silica when "Maraxsis" is installed, if you want Sand to Silicon ore ratio to stay the same. The normal "Silica & Silicon" ratio is 10 sand > 10 Silica > 1 Silicon Ore. When "Maraxsis" is present the ratio becomes 2 sand > 10 Silica > 1 Silicon Ore
Alternatively you can change the "Silicon" tech to "Advanced silicon processing" and give a recipe for 5 Silica > 1 Silicon Ore.
