Symphonia custom registry support #1151

Job	Run time
Tests (windows-latest, beta)	2m 42s
Tests (ubuntu-latest, nightly)	1m 24s
Tests (ubuntu-latest, beta)	1m 24s
Tests (windows-latest, stable)	2m 35s
Tests (macos-latest, nightly)	3m 0s
Tests (windows-latest, nightly)	2m 57s
Tests (macos-latest, stable)	2m 0s
Tests (ubuntu-latest, stable)	37s
Tests (macos-latest, beta)	1m 26s
	18m 5s

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