en.osm.town is one of the many independent Mastodon servers you can use to participate in the fediverse.
An independent, community of OpenStreetMap people on the Fediverse/Mastodon. Funding graciously provided by the OpenStreetMap Foundation.

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What do you want to use as route planning software on Linux, using @openstreetmap data? Unfortunately #osmand is not natively available on Linux and Organic Maps' effort towards a Linux client seems to be dormant?