Installing gsn with foundry

Hey,

Trying to install gsn contracts to my foundry project.
Using forge install opengsn/gsn works smoothly, except it doesn’t install all the contracts by some reason.
I’m specifically looking for contracts/src/ERC2771Recipient.sol and it is not present, neither is the corresponding interface.

I know, that foundry supports npm packages as well.
However, is there a way to install gsn contracts through forge install?

Thank you!