Fun things to do with your VM/370 CE machine

VM/370 Community Edition, a modernized build of IBM’s last unrestricted VM/370 Release 6 mainframe operating system, can now be launched on a single command via a Docker container image published by developer rbanffy, the article reports. The emulated machine is capped at one CPU and 16MB of memory—IBM calls it “storage”—yet the Community Edition packs fixes and features its 1970s base lacked, with the author likening R6 to Linux 1.0 and the CE build to a current Fedora release. Users run it with Docker or Podman and reach the console through a 3270 terminal emulator exposed on port 3270. The project matters because it gives hobbyists and mainframe-curious developers a zero-cost path to hands-on IBM systems experience without owning hardware, and all software in the Community Edition is open source or public domain. Alternatives include nested VMs on a real IBM mainframe, though process hurdles can be steep, or used hardware from eBay or IT asset disposal firms, which brings power, space and licensing costs. Next, watch adoption of the container image and the Community Edition team’s releases at vm370.org.