The Single Tasking (operating) System.
Version 1 provides a read-only filesystem implementation and a basic command-line interface. Essentially, as with raw CP/M or MS-DOS, it is basically a glorified program launcher.
Although the basic system offered only read-only access to the filesystem, individual applications could still write if they linked against a library that offered additional write services.
Built for the S16X4A. Thread-driven.
Same as V1, but built for RISC-V instead of S16X4A. Thread-driven.
The combination of Mantle, ROSE, and standard set of utilities for the Kestrel-2EX.
Unlike previous versions, Mantle is purely event-driven, not thread-driven.