R20Converter VS MaterialDeck

There is a converter from Roll20 to FoundryVTT. I've used it with great success:

https://github.com/kakaroto/R20Converter

Honestly, the only 2 times I would recommend you stay with Roll20 is if A) You are really insecure when it comes to computers as you will be hosting the server yourself (again, really simple with foundry, but it can scare some folks) or B) You are heavily invested in your 5E system and do not wish to import your campaign (though there is a tool to make the move from roll20 to Foundry much less painful)

I was a roll20 pro subscriber for 2 years and recently switched to foundry. It's light years ahead of roll20 in every category. Edit: there is a tool available to export your roll20 data and import it into foundry. Relatively easy to use but you have to sub this guys Patreon to get it. I did the low tear for 5 bucks and then canceled it so essentially it cost 5 dollars https://github.com/kakaroto/R20Converter

You can use this tool to export campaigns from Roll20 to Foundry VTT. Downloading the tool requires that you join Kakaroto's Patreon, but you can cancel the subscription as soon as you download the tool. Also, in my experience, Kakaroto is very responsive to people who experience issues with using his tools.

This tool will convert Roll20 modules to foundry: https://github.com/kakaroto/R20Converter

I cant believe no one has said this yet - but there’s literally a thing called R20Converter that takes an entire game in roll20 and dumps it into foundry, with everything setup as it was in roll20. https://github.com/kakaroto/R20Converter

and R20 Converter: https://github.com/kakaroto/R20Converter https://github.com/kakaroto/R20Converter/blob/master/README.md

I use the Matrial Deck addon with my Stream Deck. You run a small application on your computer that acts as the go-between between your Stream Deck and the hosted Foundry instance.

Here's instructions: https://github.com/CDeenen/MaterialDeck/wiki/Linux-Instructions

There also is no easy way to have an SD plug-in fully communicate an external change of state without some sort of sever running to keep things updated. The only system I’ve seen that does this consistently is the purpose built Material Deck for the FoundryVTT virtual tabletop application. It uses a local server (run on your system) that can poll the states of various commands. When you invoke them via the keyboard, if available, the state of the corresponding SD key will update (music playlist playing or stopped, game paused or unpaused, for example). And when you invoke them on the SD, they react as though you hit the keyboard command. But this is a very specific usage case for a single app. It is not available outside of FoundryVTT (for other apps). Of course, the server app is available along with its source code, so you could figure out what it takes to make it work in other apps, but that would be far, far more work than learning AHK.

"It would be so cool to use my Streamdeck to interact with Foundry." -There's a module for that. "What if difficult terrain was automatically calculated?" -There's a module for that. "I wish my players could change their token for when they're sitting." -TAMFT. It's just crazy.

You could also use Material Deck: https://github.com/CDeenen/MaterialDeck Another module by me that allow players to control their tokens using an Elgato Stream Deck. They can move tokens, run macros (for example to attack), display token stats, and more. Right now you can only use 1 stream deck at a time, but I'm planning to add support for multiple Stream Decks. It's an expensive solution, but it does do what you want it to do (or at least it will soon).

Maybe not the answer you're looking for, and it'll require you to buy hardware, but you could take a look at my Material Deck and Material Keys modules that use an Elgato Stream Deck and Novation Launchpad, respectively, to control and display various Foundry functions. Both allow you to play playlists or individual tracks by pressing a physical button, and both show which playlist and track is playing (through LEDs for Material Keys, while Material Deck can display playlist and names). As a bonus, you'll also be able to do a lot of other cool stuff :)