IT support -> write useful internal tools -> SWE is a path I have seen many take. The first role would be best for a small/medium company that hires based on what you can do rather than your credentials. Has to be big enough for a FTE but small enough that the interview isn’t too barricaded by Hr.

It's possible, if you can speak knowledgeably about computers and know how to troubleshoot, build, or fix them. If you know how to troubleshoot a "no video condition on a pc" and can speak from memory about the troubleshooting path you would take. You have better odds than someone who can't.