It says on their Github profile that they are building some kind of nowhere detection product. Maybe in that context, a very strict syscall allowlist is useful or good?

> It is designed for CI pipelines, CTF jail challenges, and lightweight code evaluation

Looking at the list, it seems pretty good for that. What does a CI runner that just needs to run GCC or whatever really need?

Edit: no open does seem restrictive. Not that it's bad security (not my area of expertise), but how many useful programs use open that are just off limits here?

allowing individual syscall is the sandbox standard today on BSDs and optin on linux. project have some issues but being too restrictive is not one