#Fedilab already caches your home timeline in the background when you have a good connection. Everything could be transparent: you see messages offline and can interact with them. The app would act like Holos, queueing your actions to process them automatically later when you're back online. Would need some work but seems like an interesting feature?
#Holos runs its own ActivityPub server on your phone. The relay temporarily stores activities until acknowledged, then deletes them.
Following/followers data is critical if you lose your local database. Should the relay keep these activities as backup (marked processed but retained) while your account is active?
Currently, our #Holos relay server is hosted on our main server alongside all our other projects. With the #FDroid launch underway, we're considering running a fundraiser to cover the costs of a dedicated server for this flagship project. We want to find the right balance: neither oversizing the infrastructure nor underestimating our needs. This would be our first fundraiser dedicated to a specific project, and we welcome all your feedback. Thank you