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Life & fun · March 25, 2026

Plasmite – a lightweight IPC system that's fun

At Oblong Industries one of the basic building blocks of everything we built was a homegrown C-based IPC system called Plasma. The message channel was an mmap'd file used as a ring buffer. All messages were human-readable, performance was good, configuration was trivial. What was especially useful (and unusual in IPC systems it seems) was the property that message channels outlive all readers and writers, and even survive reboots, because they're just files. For local IPC you don't need a broker or server process. All the engineers who ever worked at Oblong loved Plasma, so I've recreated…

Plasmite – a lightweight IPC system that's fun launched on March 25, 2026 with 9 votes, #1,237 of 23,380 launches that month and more than 75% of that year's launches.

Visit github.com ↗Alternativestop 5% of March 2026

What it does

Easy interprocess communication based on persistent JSON message queues - sandover/plasmite

In the maker’s words, at launch

At Oblong Industries one of the basic building blocks of everything we built was a homegrown C-based IPC system called Plasma. The message channel was an mmap'd file used as a ring buffer. All messages were human-readable, performance was good, configuration was trivial. What was especially useful (and unusual in IPC…

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