uFits 0.0.5

uFits shows FITS and XISF files in Finder: Quick Look previews (select a file, press
Space) and thumbnails for images, cubes, tile-compressed .fz files, spectra, light
curves, catalogs and tables, with every header.

New in 0.0.5

• XISF images (PixInsight's format): previews and thumbnails of grayscale, RGB and Bayer
  images, compressed (zlib, LZ4, Zstandard) or not, with their properties and FITS
  keywords in Header. Contributed by Shihao Wang.
• Thumbnails look like the preview: their automatic stretch now comes from the image as
  the preview shows it, whatever their size (shrunk a lot, a big image used to look
  brighter in its thumbnail).
• uFits is open source under the BSD 3-Clause license.

From 0.0.3 on, uFits says when a newer version is out (Update available in the
preview's bar) and updates itself when you open it. From 0.0.2 or earlier, update once
with the command below. See 0.0.3
for zoom, the shorter bar and the FITS files of X-ray missions, and
0.0.4 for full-size thumbnails
on Retina screens.

Install with one command in Terminal:

curl -fsSL https://github.com/lmytime/uFits/releases/download/v0.0.5/install.sh | sh

It downloads the disk image below, checks its SHA-256, copies uFits to Applications and
turns on its Quick Look extensions. Then select a FITS or XISF file in Finder and press
Space.
To remove uFits, run the same command with sh -s -- --uninstall at the end.

Or by hand: open the disk image and drag uFits onto Applications. The app is not
notarized, so macOS blocks it at first: run
xattr -dr com.apple.quarantine /Applications/uFits.app, or open uFits and click
Open Anyway under System Settings › Privacy & Security. Then open uFits once to
register its Quick Look extensions.

Universal (Apple silicon and Intel), macOS 11 or later.