Improve error model, callbacks #894

Job	Run time
samples (Release, ubuntu-24.04)	5m 10s
samples (Release, windows-2022)	10m 3s
samples (Debug, windows-2022)	2m 18s
samples (Debug, macos-latest)	1m 37s
samples (Release, macos-latest)	2m 13s
samples (Debug, ubuntu-24.04)	3m 7s
	24m 28s

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