Userbase is a great open source solution: https://userbase.com/ This post has a bunch of other options that look viable: https://medium.com/visualdevspace/9-awesome-tools-you-can-use-to-build-membership-sites-e173e912c8a7 Headless CMSs like Ghost might offer something similar: https://ghost.org/vs/memberful/


The zoo of awesome backend frameworks that would perfectly suit your use case is huge. Thus, what defines the choice is not so much the frameworks themselves but the availability of suitably trained/skilled people to you. See what skills you can get, and from there choose the tools.


searching for http upload server on github i found Tallguy297/SimpleHTTPServerWithUpload successfully tested on python3 unknown support for uploading large files will listen on all interfaces by default, allows to set --bind <host> <port> on CLI jfalken/s3_https_upload_portal meets the "Stores files on Amazon S3" criterium more ...

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