Foojay on Mastodon: An Update

Some weeks ago we checked here with the Java community if there was an interest to have a Java-oriented Mastodon service.

Let’s Start a Java Mastodon Community for Friends of OpenJDK!

Java Mastodon Service: The Feedback

Foojay Mastodon Service: Here It Is!

This week, Nicolas Frankel, also explained how he moved from Twitter to Mastodon and has set up a cross-posting solution (automated of course, as a true good and lazy developer).

Learn about Mastodon

With the following video, I try to give a quick introduction to Mastodon. It can help you to get started, if this is completely new to you. status

It has been one month since we announced Let’s share some insights what happened since then…

On our own account we share the same content as we do on Twitter, mainly links to new articles. We don’t use a cross-posting tool, but try to link to the Mastodon account of the writer, or other references, whenever possible. This account is also one month old, and already gained nearly 250 followers.

The administration dashboard shows we have a total of 118 active users on the, who interacted more than 4000 times. Two spam-like messages got reported during this month and those account are blocked, and are no longer able to interact with this Mastodon instance.

Most of the user-accounts are personal accounts, but we are happy that some Java-related projects found their new home on our instance, e.g.:

JabRef (@jabref_org): open-source bibliography management software.

Chicago Kotlin User Group (@ChicagoKUG): Kotlin enthusiasts in Chicago, IL.

Pi4J (@pi4j): open source Java library project providing simplified OO-friendly interfaces to the low-level hardware I/O on the Raspberry Pi.

Brussels JUG (@brujug): the Brussels (Belgium) Java User Group.

acme4j (@acme4j): open source Java client for the ACME protocol (RFC 8555).

In this overview you can also see the list of Mastodon instances that were most involved in the interactions, and some other statistics.

In the administrator UI, the used space storage is also shown. The media storage contains the timeline for all the members of this instance and has been “fluctuating” between 12 and 20GB as this data gets cleaned and updated continuously.


We started with a small instance to host via that provides us 200Gb of storage space and should be able to handle 250 active users.

This means within our initial setup we can welcome many more Java/JVM/OpenJDK members! And because we worked via a specialized hosting provider we can easily scale up.

So… welcome to join!

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