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OsciStudio is a tool to make animated music. The sound of the music generates images and animation on an oscilloscope.
OsciStudioMake animated music with an oscilloscope
brad johnsonleft a comment
I got it to run on an Raspberry Pi https://volumeintegration.com/installing-rocket-chat-on-raspberry-pi-2/ Pros: Easy to install. Group chat and encrypted chat. Integrations and bot support. Cons: It is almost the same as Slack but you can install it on your own system.
Rocket.ChatYour own open source Slack-like chat