Jumble is still in its early stages, and my ideas are not very mature yet, so I often make significant changes to the code. At this stage, collaborating with multiple people might result in a high communication cost, hahaha.
Nostter is a really great client, and some of the UX in Jumble is inspired by it. I hope nostr:npub1s02jksmr6tgmcksf3hnmue7pyzlm0sxwarh7lk8tdeprw2hjg6ysp7fxtw will continue to maintain it. A single client cannot meet everyone's needs. Nostr requires a variety of clients to cater to different users.