Would it be possible to remove Lignumis as a dependency for this mod? I'd like steam inserters but don't want a whole other planet.

It is possible, but the graphics and ingredients come from Lignumis. However, fluidInserterLib does not use anything from Lignumis, so ditching the long handed inserter (or just using the graphics from the normal LHI instead of the burner) will work with some recipe changes and changes to graphics. I have too much schoolwork to do it at the moment, but I wont stop anyone else from creating another mod using the ported fluidInserterLib.