SmallTalk è un messenger Android minimale, moderno, incentrato sugli amici e sulla famiglia. Fortemente ispirato a Whatsapp e Signal, è alimentato da Matrix. https://noblogo.org/filippodb/mai-piu-notifiche-da-google-guida-a-unified-push-su-mastodon-matrix-e-telegram

android e2e matrix messenger

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README.md

SmallTalk

SmallTalk is a minimal, modern, friends and family focused Android messenger. Heavily inspired by Whatsapp and Signal, powered by Matrix.

Project mantra

Tiny app size - currently 1.80mb~ when provided via app bundle.
Focused on reliability and stability.
Bare-bones feature set.

*Google play only with automatic crash reporting enabled

Feature list

Login with username/password (homeservers must serve https://${domain}/.well-known/matrix/client)
Combined Room and DM interface
End to end encryption
Message bubbles, supporting text, replies and edits
Push notifications (DMs always notify, Rooms notify once)
Importing of E2E room keys from Element clients

Planned

Device verification (technically supported but has no UI)
Invitations (technically supported but has no UI)
Room history
Message media
Cross signing
Google drive backups
Markdown subset (bold, italic, blocks)
Changing user name/avatar
Room settings and information
Exporting E2E room keys
Local search
Registration

Technical details

Built on Jetpack compose and kotlin multiplatform libraries ktor and sqldelight (although the project is not currently setup to be multiplatform until needed).
Greenfield matrix SDK implementation, focus on separation, testability and parallelisation.
Heavily optimised build script, clean cacheless builds are sub 10 seconds with a warmed up gradle daemon.
Avoids code generation where possible in favour of build speed, this mainly means manual DI.
A pure kotlin test harness to allow for critical flow assertions Smoke Tests, currently Linux x86-64 only.