Backend extends MatrixService with Start()/Stop()/ListRooms()/LoadTimeline()/
SendText()/SendMarkdown(). On login the service initialises the crypto store
(cryptohelper, Olm/Megolm via goolm build tag) and a sync loop that fans
events out through Wails events ("matrix:event", "matrix:error"). Pickle
key is 32 random bytes hex-encoded in the OS keyring alongside the access
token, so the crypto SQLite store survives restarts.
Vendors 4 fresh helpers from fn_registry/functions/infra/:
matrix_crypto_init.go (//go:build goolm || libolm)
matrix_sync_service.go
matrix_message_send.go
matrix_room_list.go
Plus the existing 3 (mas_oidc_loopback, keyring_token_store, matrix_client_init).
go-sqlite3 driver pulled explicitly via sqlite_driver.go.
Frontend rewires HomeScreen as a 3-zone AppShell (sidebar / timeline /
composer). useMatrixRooms polls + reacts to the sync stream; useMatrixTimeline
loads the last 50 events of the selected room and appends live ones. New
components: RoomList, Timeline, EventBubble, Composer. Composer supports
plain text (default) and a markdown toggle; Enter sends, Shift+Enter newline.
wails.json now passes "build:tags": "goolm" by default. Tested with
wails build -tags goolm on linux/amd64 and windows/amd64.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Egutierrez