# peetzweg/opendisplay

> Free open-source alternative to Apple Sidecar and Duet Display: turns an iPhone, iPad or spare Mac into a true second monitor for your Mac over USB or WiFi with touch input.

- Magnitude: 1.4 out of 10 — Cooling
- Stars: 4,800 total · +2 stars on 2026-09-25 (UTC), ≈ 11 by evening
- Star trust: star growth looks organic
- Category: Productivity & self-hosted · Language: Swift · License: GPL-3.0 · Created: 2026-06-10 · Last push: 2026-09-23
- GitHub: https://github.com/peetzweg/opendisplay · Homepage: https://opendisplay.app · Page: https://gitnova.dev/en/r/peetzweg/opendisplay

## Useful for

- Plug in an iPhone via cable as a second monitor for a Mac laptop
- Use an old iPad as an extra Retina display over WiFi
- Repurpose an old 2015 Mac as an external monitor for a newer Mac

## Why it’s here

- 2 stars so far today, about 11 expected by the end of the day.
- Interest is fading: the two-day pace is 10% of the previous week and a half.

## Star trust

Star growth looks organic.

Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer.

## Numbers

- Forks: 317
- Issues and pull requests: 308
- Watchers: 18
- Average over the last week: 34 per day
- Usual pace: 137 per day
- Latest release: v1.22.0 (2026-09-23)

## Stars per day, last 30 days (oldest → newest, today is partial)

2026-10-04 … 2026-11-02: None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None

## Magnitude by day, last 12 days

09-14 4.9, 09-15 5.9, 09-16 6.1, 09-17 5.0, 09-18 3.5, 09-19 2.5, 09-20 2.3, 09-21 2.5, 09-22 2.2, 09-23 1.9, 09-24 1.7, 09-25 1.4

---

Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score.
Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast.
Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself.
Data as of 2026-09-25 10:07 UTC, updated every 30 minutes.