<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title>Mac - Tag - Rodrigue Tusse</title><link>https://rodrigue.xyz/tags/mac/</link><description>Mac - Tag - Rodrigue Tusse</description><generator>Hugo -- gohugo.io</generator><language>en-us</language><managingEditor>rawdreeg@gmail.com (Rodrigue Tusse)</managingEditor><webMaster>rawdreeg@gmail.com (Rodrigue Tusse)</webMaster><lastBuildDate>Wed, 18 Feb 2026 10:40:35 +0200</lastBuildDate><atom:link href="https://rodrigue.xyz/tags/mac/" rel="self" type="application/rss+xml"/><item><title>Fix 'Please free up some pty devices' on macOS</title><link>https://rodrigue.xyz/please-free-up-some-pty-devices-on-macos/</link><pubDate>Wed, 18 Feb 2026 10:40:35 +0200</pubDate><author>Author</author><guid>https://rodrigue.xyz/please-free-up-some-pty-devices-on-macos/</guid><description><![CDATA[Fix &ldquo;Please free up some pty devices&rdquo; on macOS If you&rsquo;re running tools that spawn many subprocesses (AI agents, tmux sessions, SSH connections), you may hit the default pseudo-terminal (pty) limit on macOS.
Check your current limit 1  sysctl kern.tty.ptmx_max   Default is 511. Check how many are in use:
1  ls /dev/ttys* | wc -l   If the count is near or above the max, you&rsquo;re out of ptys.]]></description></item></channel></rss>