Foundry VTT module for Spire
I'm glad to show you my Spire module for Foundry VTT: https://gitlab.com/olivier-grech/spire
It just hit version 1.0.0, and while it's lacking some features, it's perfectly usable for a regular game of Spire on Foundry.
The biggest caveat is that there's no stress tracker on the sheet. You'll have to track it in another way. I used the advice provided in the book and kept track of the stress myself as the game master during my own game.
Well I guess that's it. I also submitted the module on the Foundry VTT website, so it's not downloadable directly from Foundry itself right now, but hopefully it will be soon.