This is amazing. I've used wanderlog extensively, but while its feature set is great, it can be a nightmare to work due to how slow it can be sometimes.

I've just registered to test it out a little bit. I tried to replicate my upcoming trip that I have set up in Wanderlog, and have the following feedback:

- Overall, amazing! Snappy. Real easy to follow.

- I love the simplicity.

- I like that this is essentially excel (kind of), but with travel specific additions.

Now for the potential improvements:

- I can't add someone else as an editor, it seems. Clicking add just logs a "TripForm" with the form object. I don't see any network requests either.

- Expenses don't allow me to select how to split it (maybe this is an issue because there's no-one else part of the trip?)

- Timetable contrast needs a bit of work. Maybe needs some padding/margins or something.

- MapTiler doesn't seem to have a good enough database. I struggled to add 152 Morrison Road

- Activities can't span multiple days (I tried adding a train ride than arrived 45 mins past midnight)

- Adding/editing activities while on the timetable page, does not update them until I refresh (or navigate away)

Outside of all that, how are you planning to monetise this? The code is released under MIT, which doesn't stop anyone from adding some subscription plan, hosting it, and advertising it. May I suggest something like AGPL?