# AdamWagner/stackline

Visualize yabai window stacks on macOS. Works with yabai & hammerspoon.

Repository: https://github.com/AdamWagner/stackline
Canonical: https://ross.abutalabs.com/products/stackline
Language: Lua
License Family: other
Topics: yabai, window-manager, hammerspoon, tabbed-layout, stacks
Last push: 2026-04-17T13:54:01+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 77, release rhythm 35, longevity 100
- inputs: {"age_days": 2224, "days_push": 138, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1055, forks 57 (observed 2026-08-28T04:03:24.260192+00:00)

## What it is
Stackline is a Hammerspoon-based Lua plugin that adds visual indicators to yabai's window stacking feature on macOS. It shows the position and count of stacked windows, optionally using app icons, with multi-monitor support.

## Use cases
- visualize stacked windows in yabai on macOS
- show indicators for tabbed window stacks
- see which apps are in a yabai window stack
- manage stacked windows across multiple monitors
- add a UI to yabai window stacking

## When to choose
- you use yabai as your macOS tiling window manager and rely on window stacks
- you already run Hammerspoon and want stack indicators
- you want app icons or slim indicators for stacked windows

## When to avoid
- you don't use yabai or Hammerspoon
- you need actively maintained software - the author stopped development in 2021
- you want a standalone window manager rather than a visualization add-on

## Facets
- artifact type: plugin
- maturity: maintenance
- function: ui-components, developer-tools
- domain: desktop-applications, developer-tools, windows
- platform: lua
- tags: yabai, hammerspoon, window-manager, tiling-window-manager, window-stacking, macos

## Member repositories
- AdamWagner/stackline (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:24.260192+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:58:26.530008+00:00, confidence not recorded.
  - readme: https://github.com/AdamWagner/stackline (fetched 2026-08-28T04:03:24.260192+00:00, sha e0f9cd2296c2)
- Data as of 2026-08-30T08:39:29.467469+00:00.