Mihai Parparita
@mihaip.hachyderm.io.ap.brid.gy
6 followers 1 following 20 posts
Engineer at Sierra, formerly of Tailscale, Slack, Quip, Google Chrome and Google Reader. On a classic Mac nostalgia kick, aiming to make things more accessible with the Infinite Mac project.
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mihaip.hachyderm.io.ap.brid.gy
Classic Mac's OS file system innovations (resource forks, metadata) were often lost in transit when the Internet took off in 1995, and the same is still true 30 years later in Infinite Mac.

I figured out a workaround using modern macOS's built-in .zip archives […]

[Original post on hachyderm.io]
mihaip.hachyderm.io.ap.brid.gy
As a demo of what's possible, I put together Infinite Monkey: https://infinitemac.org/monkey/

It lets OpenAI's or Anthropic's computer use models control an emulated Mac, based on your chat instructions.

This means that it's possible to run the @simon
"draw me […]

[Original post on hachyderm.io]
Emulated System 1.0 instance running MacPaint 1.0. It is being controlled by the OpenAI computer-use model, and attempting to draw a pelican riding a bicycle.
mihaip.hachyderm.io.ap.brid.gy
Infinite Mac can now be embedded into any website: https://infinitemac.org/embed

For a demonstration of what this can enable, see @mwichary's amazing "Frame of preference" article: https://aresluna.org/frame-of-preference/

And for a behind the scenes look […]

[Original post on hachyderm.io]
Infinite Mac embedding dialog, allowing parameters of a instance to be customized and the resulting HTML to be copied. It uses the Platinum appearance from Mac OS 8.
mihaip.hachyderm.io.ap.brid.gy
https://www.downtowndougbrown.com/2025/06/finding-a-27-year-old-easter-egg-in-the-power-mac-g3-rom/ is a great write up of finding a 27-year-old Easter egg in the Power Mac G3 ROM, and the best part is that you can experience it today in Infinite Mac
Screenshot of “The Team” Beige G3 ROM image displayed in SimpleText on MacOS 8.1 running in Infinite Mac.
mihaip.hachyderm.io.ap.brid.gy
And I know #marchintosh is more about classic Macs, but you can run older software here too.

Create a custom instance with both 10.1 and 9.2.2 mounted, and then Classic can be started from System Preferences […]

[Original post on hachyderm.io]
Mac OS X 10.1 under Infinite Mac showing the Classic environment running Calculator, Scrapbook and Stickies.
mihaip.hachyderm.io.ap.brid.gy
Mac OS X was released on this day 24 years ago. On this anniversary, here it is on the web: https://infinitemac.org/2001/Mac%20OS%20X%2010.1 (technically 10.1, but that’s the first release that actually worked acceptably)

Infinite Mac has a more complete […]

[Original post on hachyderm.io]
Mac OS X 10.1 running under Infinite Mac, showing the Finder, NetNewsWire Lite and Terminal.
mihaip.hachyderm.io.ap.brid.gy
New company, new corporate blog for me to post on. https://sierra.ai/blog/gardening-week-evergreen-engineering 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.

More seriously, it's […]
Original post on hachyderm.io
hachyderm.io
mihaip.hachyderm.io.ap.brid.gy
What are good examples of early Mac OS X software (10.0-10.4 era, pre-Intel switch)? My list so far

- OmniWeb, OmniGraffle, OmniOutliner and other Omni Group software
- Transmit 2, Unison, Candy Bar, Pixadex, and other Panic software
- Audio Hijack and other Rogue Amoeba software
- NetNewsWire […]
Original post on hachyderm.io
hachyderm.io
mihaip.hachyderm.io.ap.brid.gy
@NetNewsWire did some local (uncommitted?) changes to the default theme get included in the 6.1.5 iOS release? I'm seeing all links being underlined. What's odd is that I can't reproduce when making own build (either from HEAD or from the iOS-6.1.5-6126 tag) […]

[Original post on hachyderm.io]
Screenshot of NetNewsWire 6.1.5 on iOS showing underlined links. Screenshot of local NetNewsWire build on iOS showing regular links.
mihaip.hachyderm.io.ap.brid.gy
@siracusa @atpfm @macthemes Indeed it is. Infinite Mac is just a way for me to relive my youth (I did the initial designs for that scheme on my TI-83 during math class).
mihaip.hachyderm.io.ap.brid.gy
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: https://blog.persistent.info/2024/11/infinite-mac-macintosh-garden-library.html
mihaip.hachyderm.io.ap.brid.gy
@siracusa the compression speed and parallelism discussion on the most recent ATP reminded me of @saagar’s https://github.com/saagarjha/unxip. Though it only focuses on decompression, it shows how much faster than Archive Utilityyou can be.
mihaip.hachyderm.io.ap.brid.gy
P.S. This should work with any instance running System 7 - Mac OS 9.0.4 (i.e. emulated by BasiliskII or SheepShaver), just append the ?library=true parameter to its URL.
mihaip.hachyderm.io.ap.brid.gy
Early preview of a new Infinite Mac feature: more direct access to the awesome software library from the Macintosh Garden.

https://infinitemac.org/1997/Mac%20OS%208.0?library=true gets a new drawer that lets you browse and "download" into the Mac any […]

[Original post on hachyderm.io]
mihaip.hachyderm.io.ap.brid.gy
I couldn’t find a watchOS weather complication I liked so I ended up making my own app: https://blog.persistent.info/2024/08/weather-text.html
Apple Watch Modular face with Weather Text complication
mihaip.hachyderm.io.ap.brid.gy
@marcoarment happy to see that Intents/Shortcuts are back in Overcast. Any chance for a “Play Playlist” intent? I used to have a shortcut to start my preferred playlist (regardless of what I was doing before), which I can’t seem to recreate.
mihaip.hachyderm.io.ap.brid.gy
@siracusa Based on https://infinitemac.org/?filter=next the Chess app first showed up in NeXTStep 1.0 (as a developer sample app), so it's almost 35 years old.
Screenshot of Chess running on NeXTStep 1.0.
mihaip.hachyderm.io.ap.brid.gy
Combination of importing my high school era coding projects into GitHub and https://www.retrogit.com/ is generating a lot of feelings.
Screenshot of a code commit from 26 years ago, showing a change to the clip2cicn classic Mac utility.