The T2 SDE (System Development Environment) is an open source Linux distribution kit.

In June 2024, version 24.6 was released shipping Wine for Windows application compatibility as well as LibreOffice and Thunderbird for a complete Linux Desktop experience.

In July 2024, version 24.8 was released shipping OpenJDK for Java™ compatibility as well as a multi-architectural MIPS64 Linux kernel built for Sgi IP27, IP30, IP32(r5k & r10k) as the first Linux OS release to boot on multiple Sgi RISC workstations and servers.

[11] Archivista made a document management system based on T2 SDE.

[12] T2 SDE supports the x86-64, x86, arm64, arm, RISC-V (32 and 64 bit), ppc64le, ppc64-32, sparc64, MIPS64, mipsel, hppa, m68k, alpha, and ia64 architectures.