lib/std/Io.zig          |  5 +++--
 lib/std/Io/Threaded.zig | 24 ++++++++++++++++++++++++
 lib/std/Progress.zig    | 23 +++++++++++------------
 lib/std/start.zig       |  6 +++---
 4 files changed, 41 insertions(+), 17 deletions(-)