refactor: lowlevel Server #439

Job	Run time
checks / readme-snippets	10s
checks / pre-commit	23s
checks / test (3.13, locked, windows-latest)	7m 35s
checks / test (3.14, lowest-direct, windows-latest)	6m 56s
checks / test (3.14, lowest-direct, ubuntu-latest)	6m 21s
checks / test (3.11, lowest-direct, windows-latest)	7m 39s
checks / test (3.13, lowest-direct, ubuntu-latest)	6m 43s
checks / test (3.12, locked, ubuntu-latest)	6m 46s
checks / test (3.10, lowest-direct, windows-latest)	7m 46s
checks / test (3.11, lowest-direct, ubuntu-latest)	6m 14s
checks / test (3.14, locked, windows-latest)	8m 19s
checks / test (3.10, locked, windows-latest)	7m 41s
checks / test (3.11, locked, windows-latest)	7m 21s
checks / test (3.10, locked, ubuntu-latest)	6m 14s
checks / test (3.14, locked, ubuntu-latest)	7m 19s
checks / test (3.10, lowest-direct, ubuntu-latest)	6m 27s
checks / test (3.12, locked, windows-latest)	7m 41s
checks / test (3.11, locked, ubuntu-latest)	6m 11s
checks / test (3.12, lowest-direct, ubuntu-latest)	6m 45s
checks / test (3.13, lowest-direct, windows-latest)	8m 29s
checks / test (3.13, locked, ubuntu-latest)	6m 16s
checks / test (3.12, lowest-direct, windows-latest)	7m 53s
all-green	5s
	2h 23m 14s

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