I just saw that the github user bambanah seems to has started to continue the development of deemix!!
There’s now a docker image you can use too.
Reddit link with more info about it: https://web.archive.org/web/20250114172700/https://old.reddit.com/r/Piracy/comments/1g5nar6/deezer_downloader_deemix_has_been_revived_on/
I see many posts about piracy services closing down, so maybe this post gives some hope:)
I remember seeing that site some months ago, but didnt pay much attention to it (I thought it was lacking features)
Now that I see it again it looks veeery good indeed, might start using it:)
(I remember about a year ago when I found the free-mp3-downloader and it got shut down about a month later💀, hope this wont happen to this site too.)