Yes, I think for me Nim could be a great answer for when I want to throw together a quick script. Right now I'll often use JS/Node for that and I'm not going to switch to Rust because it'll take a lot longer to get a rough and ready script going.
Should you want to give that script a nice, traditional CLI then you can do so with very low effort using https://github.com/c-blake/cligen
Should you want "script like" edit-test development cycle ergonomics you can use the TinyCC/tcc backend for compiles in ~200..300 milliseconds. Once it's how you like it you can compile with gcc & -d:danger for max performance in deployment.
Unmentioned so far is the NimScript mode `nim e`..For a portable sort of alternative to Bash scripting ("sort of" from the presently much longer start-up time...).