I believe wholeheartedly that video based Immersion can be the main course!

If you think back on how you learned your first/native language it follows the same concept. Your parents gave you comprehensible input in form of talking to you, letting you watch TV, reading stories to you, etc. Videos are basically the same thing, a visual cue that is combined with a word & that is enough to enable your brain to make connections and create a bigger understanding of a language. But I agree with you that these videos have to be engaging enough for you to actually stick with them, that's why I'm trying to find as many videos as possible & put them on the platform.

Where we completely disagree is Vocabulary & Grammar. For most people these are suuuuper boring & annoying which includes me as well. Also I just don't believe that you need to do endless grammar & vocabulary drills to learn a language because you didn't need to for your native language so why would you need to do that for a second language. I'm a good example of this myself. If you ask me to explain grammar in German or English I just couldn't but I can still tell you if something is wrong. You just develop a sense/feeling for the correct use of the language by using it & getting more exposure.

Got "invalid login attempt" after creating account and validating email. Once I'm logged in maybe I can give some more based feedback.

A priori, sounds good, solid idea and I don't think anyone can doubt that video based immersion is part of a healthy language learning diet. Question is, can it be the main course?

I've had a pretty similar path of learning English as yours so my main doubt is the following: I don't believe that the experience of a video game is the same as that of a video with social/cultural significance (those come usually only in your native language and in English) which are both quite different from "some" video on youtube. So it's a question of level of engagement with the content.

Having said that, I would like to see what other supporting structure you have / will put into place. Codifying vocabulary and grammar as well as written and oral practice will somehow need to be tackled in a "one-stop-shop" application.

having some trouble getting registered. but you've got two of the languages I want to learn in there, so I'm excited to try.

and yes I'm using an e-mail mask.

Some Screenshots to get a better feel for the App

Love it! What a great idea.