Architecture decisions

Short records of the decisions that shape the framework: the context, what was decided, and what follows. A decision is changed by a new record that supersedes it, never by editing history.

#	Decision	Status
0001	Pure C++20 cores behind ports	accepted
0002	AGPL-3.0-or-later or commercial	superseded by 0021
0003	JUCE 9.0.3 and Tracktion develop at a pinned commit	accepted
0004	No globals: a composition root	accepted
0005	UI as view models plus thin widgets	accepted
0006	Five first-class platforms	accepted
0007	Simple and fast	accepted
0008	One command model, ready for people, remotes and AI	accepted
0009	Time as types: musical anchors and absolute network time	accepted
0010	A show recorder (flight recorder) with deterministic replay	accepted
0011	One command catalogue, many protocol surfaces	accepted
0012	Declared degradation modes, proven by fault injection	accepted
0013	Cores build for WebAssembly	accepted
0014	Networked audio and stream redundancy as framework domains	accepted
0015	Permissive dependencies first	accepted
0016	Education and research are first-class	accepted
0017	A framework for any kind of music application	accepted
0018	An open tempo-sync protocol of our own	accepted
0019	Real-time safety checked by the compiler and in CI	accepted
0020	Semantic versions, one version source, a changelog and tagged releases	accepted
0021	Apache-2.0, with a contributor licence agreement	accepted