use only finished sessions in timing data;

tuned;

performance tuning for build schedule: explicit schedule generation, without mixing heuristics;

performance tuning for build schedule: faster stopping;

performance tuning for timing heuristic: pre-calculate graph operations;

move timing data into scheduler for more efficient heuristics (e.g., with pre-calculated values);

clarified signature: emphasize mutable instance;

clarified signature: more operations;

support for explicit SSH hostname;

proper local host (amending 62d7ef1da441);

merged

added lemma

proper default for disjunction (amending 9f7a94117666);

tuned;

more operations;

avoid option -C: free this latter for build-related configuration;

more direct indentation, using Symbol.spaces;

clarified signature;

more accurate treatment of surrounding whitespace;

obsolete (see also f627ab8c276c);

tuned signature;

clarified signature: Command_Span.Kind already contains keyword_kind, so parsing document structure no longer requires Keyword.Keywords;

clarified modules;

tuned signature;

tuned;

proper Option.Spec.toString for bash script: avoid Token.quote_name of Options.Spec.print_value (amending 3d1746a716fa, see also 39f6f180008d);

more tests;

clarified exploration of history: more uniform options;

tuned;

tuned;