Added lotide (link aggregator)

watchlist-for-activitypub-apps.md

@@ -106,6 +106,8 @@
 
 * :heavy_check_mark: **[Littr.me](https://github.com/mariusor/littr.go)** ([Fedi account](https://metalhead.club/@mariusor)): Link aggregator inspired by Reddit `MIT, Go`
 
+* :black_nib: **[lotide](https://git.sr.ht/~vpzom/lotide)**: A federated forum / link aggregator. `AGPL-3.0, Rust`
+
 * :heavy_check_mark: **[MoonTree](https://github.com/Faleidel/moontreeproject)**: Link aggregator, a work in progress `MIT, Typescript`
 
 * :black_nib: **[Pantheon](https://github.com/TGNThump/Pantheon)**: Platform for building communities, no commits since September 2019