yshui/picom

A lightweight compositor for X11 with animation support

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yshui/picom has 4.5k+ stars and 600+ forks on GitHub, is written in C, and was last pushed on Sep 22, 2026. Data as of . Signed-in members get hourly updates — create a free account.

Summary Information

Updated 10 minutes ago
Type:Server / PlatformCategory(s):Operating Systems & LinuxSystems, Hardware & HPC
Added to GitGenius on September 14th, 2026
Created on July 14th, 2016
Open Issues & Pull Requests: 278 (+0)
GitHub issues: Enabled
Number of forks: 636
Total Stargazers: 4,820 (+0)
Total Subscribers: 49 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 18.6 hours
Mean response time: 77.9 days
90th percentile: 122.1 days
Tracked items: 195

Maintainer activity

2 people did triage or write work on this repository in the last 12 months.

Counts unlabeled, assigned, unassigned, milestoned, demilestoned, locked, unlocked over the last 12 months. These are issue and pull request events that require triage or write permission. Commits and code review are not counted. labeled and renamed are excluded because GitHub issue forms record the issue author as the actor. Figures from October 11, 2026. This count is not comparable across projects: each project's automation decides which of these events a person emits. How this is counted.

How this project is maintained

Roughly one issue in four opened in the past year never receives a reply. 96% of open issues come from outside the core team, so the backlog reflects real-world use rather than internal planning. Only 42% of issues opened in the past year have been closed. Three people close 71% of everything that gets resolved.

Charts & Analytics

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Issue Activity (beta)

Open issues: 74
New in 7 days: 0
Closed in 7 days: 0
Avg open age: 749 days
Stale 30+ days: 73
Stale 90+ days: 64

Recent activity

Opened in 7 days: 0
Closed in 7 days: 0
Comments in 7 days: 0
Events in 7 days: 0

Top labels

  • help wanted (15)
  • stale (12)
  • feature (10)
  • enhancement (9)
  • duplicate (6)
  • invalid (6)
  • upstream (6)
  • priority:low (5)

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Detailed Description

The tool addresses the need for efficient window compositing on X11 systems. It handles rendering of windows, visual effects, and animations while maintaining a minimal resource footprint. The compositor works by intercepting X11 rendering operations and applying effects like fading, transparency, and motion before displaying the final result to the screen.

Developers maintaining X11-based desktop environments or window managers should consider picom if they need compositing features without the overhead of heavier alternatives. It suits systems where performance matters and animation capabilities are desired. The project explicitly notes it is a development branch with bugs to be expected, so adopters should be prepared for instability and actively participate in testing and reporting issues.

The project maintains active engagement with its community through a discussion tab and Discord server. Development involves a structured contribution process where all code undergoes review before merging, and collaborators are expected to commit significant time to issue triage, pull request review, and bug fixes. The tool requires a substantial set of X11 libraries and dependencies to build, including libx11, xcb utilities, pixman, and optional support for OpenGL and regex features through configurable build flags.