Great news! I have just been in touch with the developer and he is putting the finishing touches to a new Shave Version 2 which will be Yosemite compatible.
Here's what Jon had to say:
"Shave 2.0 is almost done. It's a total rewrite. But now it's 64-bit and does a lot of cool stuff it couldn't do before. Unfortunately, the codec support won't be anything like Shave 1.x because of the shift from QuickTime API (which Apple is trying to kill) to AVFoundation (their new thing). AVFoundation, unfortunately, doesn't support third party codecs, but I'll continue using FFMPEG for importing options (FFMPEG is what Shave 1.x uses to import MTS/VOB and MKV files).
Some major additions though:
- Realtime effects and color correcting
- A very simple timeline for "non-linear" editing (just 1 video track and 2 audio tracks). The timeline stays tucked away until you "discover" it, so Shave 2.x looks and acts like Shave 1.x.
- Undo is limitless and is saved with your project so that re-opening it later resumes you at the same exact spot you were at
- The ability to save "Snapshots" of an edit and go back to it at a later time
- The ability to create markers for ingesting footage
I'm literally doing 15 hour days on Shave 2.0 at the moment, hoping to get it out the door in the next two weeks."
Shave 2.0 will also have a new website at http://shave.rocks/
Jon also said he's hard at work on another video app, tentatively titled VIX: http://interfacelab.com/vix-a-new-kind-of-video-editor/