Add-on development continuation question

[Anatoliy]

I developed my first add-on two years ago (and even published it). Now I don't have that computer I used for its development. Can I continue its development?
Can I download the add-on from XFRM, install on my local server, develop, bump version, build-release, and publish to XFRM?
Or it doesn't work this way?
Add-on development continuation question

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