Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and discussions and couldn’t find anything (or linked relevant results below)

Problem

https://nodejs.org/en/learn/typescript/run-natively

Custom remark config path with, for example, remarkrc.ts

Current solutions

N/A

Proposed solutions

Just add .ts, .mts .ts into:

I tried with Node 24 it runs very well, but with Node 22, it throws unknown extension .ts at