$ brew install ledger-cli
==> Pouring ledger-cli-3.8.0.arm64_sequoia.bottle.tar.gz
🍺 /opt/homebrew/Cellar/ledger-cli/3.8.0: 41 files, 12.4MB
$ ledger login
Opened https://ledger.example/device — code HXQP-4M2V
✓ authorised as m.okafor (8h)
$ ledger topic ls --lag
NAME PARTITIONS LAG
queue.ingest 12 4,201,882
queue.retry 3 0
events.audit 6 118
$ ▮
One binary, no daemon, no config file required. Output is stable and columnar by default and JSON when you ask.