Do we want to allow integer sample names? Seems like something that could cause trouble, though I'm not completely opposed

like a sample name being

12342

only?

indeed

yeah, I don't see any issue with that

Sorry, forgot to post the PR the prompted this question: https://github.com/nf-core/rnaseq/pull/1421

yeah, for me an integer is a string

Should be fine in 99% of the cases. You can still add do a

.toString()

at the start of the pipeline in

meta.id

to be 100% safe