There really should be a free and open source alternative for Duolingo. I know that there is Librelingo, but that is currently only doing Spanish for English speakers.

Here’s a kind of secret and totally awesome way to access newspapers.com and other tools like JSTOR, Proquest and ancestry itself: If you’re an active participant of Wikipedia, you’ll get access to the Wikipedia library:

https://wikipedialibrary.wmflabs.org

You need an account age of 6 month, 500 edits at all and 10 edits in the last month, but that is something you can easily get and you’re also doing something for the greater good

Try https://jwallet.github.io/spy-spotify/overview.html