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makalin
CornerFix
Objective-C2026–2026
makalin / CornerFix

CornerFix

CornerFix — Injected macOS window sharpener: libcornerfix.dylib + cornerfixctl reshape standard titled windows (corner radius 0–24). Live enable/reload via Darwin notify, per-bundle plist overrides, presets, cornerfix-inject, and unsigned CornerFixTestApp. Swizzles private AppKit window APIs; tweak/loader workflow—not App Store/hardened-app safe.

2Distinct people
2Mentions
0Explicit recommenders
237GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

CornerFix — Injected macOS window sharpener: libcornerfix.dylib + cornerfixctl reshape standard titled windows (corner radius 0–24). Live enable/reload via Darwin notify, per-bundle plist overrides, presets, cornerfix-inject, and unsigned CornerFixTestApp. Swizzles private AppKit window APIs; tweak/loader workflow—not App Store/hardened-app safe.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by hour2 dated mentions

Observed mentions: 2026-01-19 19:48:37 UTC to 2026-01-19 20:34:41 UTC.

012026-01-19 19:00:00 UTC to 2026-01-19 20:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsJan 19, 19:002026-01-19 20:00:00 UTC to 2026-01-19 21:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJan 19, 20:00

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Jan 19, 19:002026-01-19 19:00:00 UTC2026-01-19 20:00:00 UTC110
Jan 19, 20:002026-01-19 20:00:00 UTC2026-01-19 21:00:00 UTC101

What Hacker News says

2 sources
The title is misleading: this only modifies the desktop rounded corners, not the app window corners (heavily discussed recently at HN and elsewhere). The blog post about this is slightly interesting, but mostly feels like a candidate’s position paper on rounded corners, rather than an newsworthy or technical explanation: https://medium.com/@makalin/reclaiming-the-screen-a-develope... The core innovation is the ctx.fill calls here: https://github.com/makalin/CornerFix/blob/main/Sources/Corne...
In Fix macOS 26 (Tahoe) exaggerated rounded corners

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