Mihai Parparita
persistent.info
Mihai Parparita
@persistent.info
Engineer at Sierra, formerly of Tailscale, Slack, Quip, Google Chrome and Google Reader.
Classic Mac's OS file system innovations (resource forks, metadata) were often lost in transit on the Internet in 1995, and the same is true 30 years later with Infinite Mac.

I found a workaround using modern macOS's built-in .zip archives – a brief writeup: blog.persistent.info/2025/09/infi...
September 18, 2025 at 2:23 PM
Infinite Mac can now be embedded into any website: infinitemac.org/embed

For a demonstration of what this can enable, see @aresluna.org's amazing "Frame of preference" article: aresluna.org/frame-of-pre...
July 9, 2025 at 3:57 PM
Reposted by Mihai Parparita
I wrote something new! It’s a UI design history essay about Mac’s Control Panel, and it uses emulation in some… maybe new and maybe interesting ways?

aresluna.org/frame-of-pre...
Frame of preference
A story of early Mac settings told by 10 emulators.
aresluna.org
July 8, 2025 at 11:37 PM
Mac OS X was released on this day 24 years ago. On this anniversary, here it is on the web: infinitemac.org/2001/Mac%20O...

(technically 10.1, but that’s the first release that actually worked acceptably)
March 24, 2025 at 2:28 PM
New company, new corporate blog for me to post on. sierra.ai/blog/gardeni... describes an engineering team ritual that we've developed. You can tell that it was not ghost-written because I got to cram in a lot of links to obscure articles.
Gardening Week: Evergreen Engineering
At Sierra, we value intensity and craftsmanship—Gardening Week is an investment in the long-term quality of our software.
sierra.ai
March 13, 2025 at 5:11 PM
Holy Hyrum's Law
January 26, 2025 at 6:03 AM
Infinite Mac now has a “Macintosh Garden” drawer that allows one-click loading of any of the 20,000 items archived by that site.

I wrote up a brief post with some behind-the-scenes details: blog.persistent.info/2024/11/infi...
November 4, 2024 at 4:09 PM
I’m still team “if you didn’t blog it, it didn’t happen”. So here’s a post about how much Quip technology is in Slack canvas (spoiler: a lot): https://blog.persistent.info/2023/07/slack-canvas-quip.html
Slack Canvas In The Streets, Quip In The Sheets
blog.persistent.info
July 6, 2023 at 4:14 PM
https://tailscale.dev/blog/battery-life describes battery life work we're doing at @tailscale.com. It's been a fun few months going beyond just Darwin spelunking to also hack on the Go standard library and explore different aggregation and visualization options.
Battery life instrumentation
We’ve added instrumentation and taking a more systematic approach to investigating battery life issues in the Tailscale mobile clients.
tailscale.dev
April 25, 2023 at 8:20 PM