build

Update docs, fix multiple initial block case #4889

Job	Run time
Build \| ubuntu-24.04 \| clang	6m 55s
Build \| ubuntu-24.04 \| gcc	2m 21s
Lint Python	58s
Build \| ubuntu-22.04 \| clang	5m 22s
Build \| ubuntu-22.04 \| gcc	2m 3s
Test \| ubuntu-24.04 \| gcc \| dist-vlt-0	10m 16s
Test \| ubuntu-24.04 \| gcc \| dist-vlt-1	10m 41s
Test \| ubuntu-24.04 \| gcc \| dist-vlt-2	11m 56s
Test \| ubuntu-24.04 \| gcc \| dist-vlt-3	21m 1s
Test \| ubuntu-24.04 \| gcc \| vltmt-0	17m 38s
Test \| ubuntu-24.04 \| gcc \| vltmt-1	17m 45s
Test \| ubuntu-24.04 \| clang \| dist-vlt-0	13m 56s
Test \| ubuntu-24.04 \| clang \| dist-vlt-1	14m 23s
Test \| ubuntu-24.04 \| clang \| dist-vlt-2	15m 26s
Test \| ubuntu-24.04 \| clang \| dist-vlt-3	13m 57s
Test \| ubuntu-24.04 \| clang \| vltmt-0	24m 36s
Test \| ubuntu-24.04 \| clang \| vltmt-1	26m 0s
Test \| ubuntu-22.04 \| gcc \| dist-vlt-0	8m 47s
Test \| ubuntu-22.04 \| gcc \| dist-vlt-1	9m 20s
Test \| ubuntu-22.04 \| gcc \| dist-vlt-2	8m 2s
Test \| ubuntu-22.04 \| gcc \| dist-vlt-3	8m 19s
Test \| ubuntu-22.04 \| gcc \| vltmt-0	16m 0s
Test \| ubuntu-22.04 \| gcc \| vltmt-1	15m 29s
Test \| ubuntu-22.04 \| clang \| reloc \| dist-vlt-0	9m 36s
Test \| ubuntu-22.04 \| clang \| reloc \| dist-vlt-1	13m 39s
Test \| ubuntu-22.04 \| clang \| reloc \| dist-vlt-2	8m 19s
Test \| ubuntu-22.04 \| clang \| reloc \| dist-vlt-3	7m 42s
Test \| ubuntu-22.04 \| clang \| reloc \| vltmt-0	16m 24s
Test \| ubuntu-22.04 \| clang \| reloc \| vltmt-1	21m 16s
	5h 58m 7s

Provide feedback