At the time of writing the leading project aiming to enable UPDI programming without official hardware is pymcuprog, but its repository has a single commit dated two months ago and no activity since.
I think it might actually be that the GitHub repository is a mirror of a non-Git internal repository. If you look at the issues and PRs on that repository, there are several from long before the "initial commit," and at least one comment where a Microchip employee mentions a separate upstream repository.
I think it might actually be that the GitHub repository is a mirror of a non-Git internal repository. If you look at the issues and PRs on that repository, there are several from long before the "initial commit," and at least one comment where a Microchip employee mentions a separate upstream repository.
https://swharden.com/blog/2022-12-09-avr-programming/