So what happens to the belts and inserters on this planet?

For the most part, belts and inserters can only go to the right. There's a lot more detail in terms of exactly all the changes, and how they work (especially depending on what mods you have installed), but the main theme is: "Items cannot move left." The entire recipe chain is built around this, and train upgrades structured around this.

Oh thx for the reply. So too much wind coming from the left. Sounds fun.

btw it may be a good idea to explain a bit in the mod description. Have a good day

Done :)