Is it possible to build these as static binaries?

[aka-mj]

I'm looking for a static built signify. Is this possible with lobase?

[Duncaen]

I did some static builds with musl libc some time ago, but I don't think everything would built with static linked glibc.

If you just need signify you could try https://github.com/chneukirchen/outils/ which might be a lot simpler because it only contains a small subset including signify.