Meson

nixd/Controller: allow setting initial configuration via CLI #3127

Job	Run time
nix-build-develop-gcc (none, release, true)	2m 53s
nix-build-develop-clang (none, release, true)	2m 57s
nix-build-develop-clang (none, release, false)	2m 55s
nix-build-develop-gcc (none, release, false)	3m 1s
nix-build-develop-clang (none, debug, true)	2m 44s
nix-build-develop-gcc (none, debug, true)	2m 57s
nix-build-develop-clang (none, debug, false)	2m 53s
nix-build-develop-gcc (none, debug, false)	2m 59s
nix-build-develop-gcc (address, release, true)	4m 39s
nix-build-develop-gcc (address, release, false)	4m 43s
nix-build-develop-gcc (address, debug, true)	3m 51s
nix-build-develop-gcc (address, debug, false)	3m 59s
nix-build-develop-gcc (undefined, release, true)	4m 3s
nix-build-develop-gcc (undefined, release, false)	4m 15s
nix-build-develop-gcc (undefined, debug, true)	3m 17s
nix-build-develop-gcc (undefined, debug, false)	3m 18s
	55m 24s

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