When Ubuntu Builds Fail on libvips but macOS Does Not
Why a Rails test suite can fail on Ubuntu because of an older native libvips, and how to upgrade it safely without confusing it with the ruby-vips gem.
Tag: macos
Auditing USB-C Cable Quality from macOS Terminal
A macOS Terminal script that reads the I/O Kit registry to check negotiated wattage and voltage, so you can tell a fast USB-C cable from a slow one.
Why macOS ignores your manual DNS settings
On a managed MacBook, iCloud Private Relay and MDM scoped resolvers silently override manual DNS settings, and scutil --dns shows you which one is winning.
Speeding Up Docker: Fixing Slow Host-to-Container File Sync
Bind-mounted host directories make Docker Desktop file access painfully slow on macOS and Windows, and this covers volumes, docker-sync, Mutagen, and WSL 2 fixes.
Detecting Cloudflare Zero Trust Beyond the WARP Flag
WARP can report itself as off while Zero Trust still routes your Mac's traffic; here is how to check DNS, ASN, and DoH to find out for sure.
Monitor Cloudflare WARP Status on macOS with launchd
A launchd-scheduled shell script that detects when Cloudflare WARP reconnects on a company-managed Mac and sends a desktop notification.
Extracting the Second Page From Multiple PDFs on macOS
How to batch-extract one page from many PDFs on macOS and merge the results into a single file, using Poppler's pdfseparate/pdfunite or pdftk.