Crazierl – An Erlang Operating System
Crazierl is an experimental/hobby operating system based around BEAM. I've linked the browser based demo; I don’t recommend using a phone; it does work, slowly, on the phones I tested, but it’s very awkward to use. You can share a link with a hashtag with your friends and click the consent checkbox, and it (should) link up into dist and I’ve also included a chat application you can start with chat:start(). (quit chat with /quit, or use the shell menu with ctrl-g to switch between shells etc). The browser demo relies on the v86 javascript x86 virtual machine. You can also run…
Crazierl – An Erlang Operating System launched on March 29, 2026 with 72 votes, #656 of 23,380 launches that month and more than 95% of that year's launches.
In plain words
Crazierl is an experimental hobby operating system built on BEAM, the Erlang runtime. It runs in a browser-based demo powered by a JavaScript x86 virtual machine, or on real 32-bit x86 hardware with BIOS boot. Users can connect multiple instances together over the network and use a built-in chat application. The system supports virtio-net and Realtek 8168 network drivers and runs Erlang natively, though it has limited hardware compatibility and works slowly on mobile devices.
written from the facts on this page · September 2026
From the sources
You can join your friends in a dist cluster, by sharing a url with the same hashtag, and enabling dist with the checkbox below the terminal. Hashtag (for linking) Please wait while the emulator starts. Javascript is required. Warnings There is no security barrier between nodes in a dist cluster; you should only use dist between nodes you control and trust This demo uses gen_tcp_dist which communicates in plain text; you should only use this on a network you control and trust This demo uses wss://relay.widgetry.org to provide networking service; chances are you don't control that. "no one in their right mind would run the unencrypted and unauthenticated Erlang distribution unsecured over the…from crazierl.org
In the maker’s words, at launch
Crazierl is an experimental/hobby operating system based around BEAM. I've linked the browser based demo; I don’t recommend using a phone; it does work, slowly, on the phones I tested, but it’s very awkward to use. You can share a link with a hashtag with your friends and click the consent checkbox, and it…
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