Concepts¶

These pages explain the mechanisms behind PLeX. Use them when you need to understand why a manifest behaves a certain way or where a responsibility belongs. For exact keys and signatures, use Reference.

Execution and compilation¶

Topic	Covers
Execution model	Graph, orchestration, Native providers, and their runtime relationship.
Graph paths & policies	Path matching, inheritance, policy merge order, and schemes.
Compilation pipeline	From graph package export to IREE bytecode and the final .mln.
Devices	Compiler targets, runtime drivers, URIs, and the support boundary in this source tree.

Build system¶

Topic	Covers
Build workflow	Resolution, planning, caching, compilation, and packaging.
Dependency resolution	Local/Git sources, capabilities, variables, and the current lockfile behavior.
Build domains	iree, wasm, and native build packages.
Toolchains	Compiler discovery, explicit toolchains, Orchestration compilers, and cross-compilation.

Operations¶

Topic	Covers
Diagnostics	Diagnostic-code families and how to read failures.