Any chance you could expand on how the DAG is implemented in Rust for the execution engine? I'm trying to do something similar (not for spreadsheets but rather

Any chance you could expand on how the DAG is implemented in Rust for the execution engine? I'm trying to do something similar (not for spreadsheets but rather for a language: https://docs.yoctoproject.org/bitbake/bitbake-user-manual/bitbake-user-manual-metadata.html#basic-syntax https://docs.yoctoproject.org/bitbake/bitbake-user-manual/bi...). I cannot find any good examples of how to implement something like this in Rust. E.g. should I use a graph library like petgraph, or roll my own?