Simple Gemstones was my first Luanti od designed primarily for my personal use. It’s actually a Modpack because that means you can disable various features modularly to provide your own drop-in replacements. It’s feature-complete and will only receive maintenance updates. Minetest has since become Luanti and I am expecting some API changes when I upgrade to the next Devuan LTS but other than that there won’t be any new development other than replacing some textures.
My main motivations for this mod were to learn how to write Minetest/Luanti mods, and to create a set of Gemstone nodes and items which replicated functionality I enjoyed from the Tekkit Classic era modpack for Minecraft.
It’s not formally released via the Luanti ContentDB due to the fact that I borrowed some textures from Minecraft, a Minecraft gemstones mod, and another gemstones Luanti mod. This makes the licensing a bit murky if I chose to formally release it. Once I replace these textures I may consider releasing it, but since the mod is mostly designed for personal use in my own game this is unlikely to happen any time soon.