Thanks for the feedback
Firstly its annoying that the spidertrons are unlocked on Gleba, which is usually visited after fulgora and vulcanus, making spidertrons even less useful. Spidertrons need more love imo
You dont necessarily need to land on the planet first time. So my other mod https://mods.factorio.com/mod/neural-spider-control lets you remotely drive a Spidertron as if you are driving it, not Remote Driving that was introduced in 2.0.
You've made me spot a game breaking bug - I tested the following:
New save, build and supplied a platform with a spidertron and sent the platform to Vulcanus - on arrival, the surface is discovered but not no tiles have been generated. Initiating the spidertron deployment drop and the game crashed as no tiles have been generated.
A work around until I can fix - place anything in the platforms orbital drop slots and send down. Once on the ground you will see an unclaimed drop pods alert. Even though there nothing on the map, you can then deploy the Spidertron from the remote view on the black surface.
Once fixed, when you first arrive to the planet, deploy the Spidertron with equipment (roboport and whatnot), send down the supplies (construction bots), use my other mod and Connect into the Spidertron. You can pick up the items, construction bots, and place as normal.
I have some workarounds in mind that stocks the Spidertron automatically. SE allowed you to crash a spidertron into a planet and forced it to deploy. There was some script that moved construction bots into the Spidertron inventory. I can do something like this too. But not until next week until I come back home.
I would like to make some compatibility for some early spider - unlocking on Nauvis and deployable so you never really need to leave Nauvis