v0.2.0

Shared data and compression

• Shared data on btrfs, XFS and bcachefs: the details pane shows how much of a file or folder is
  also used by snapshots or reflink copies (Shared) and what deleting it would really free
  (If deleted). --no-extents skips the lookup
• Exclusive view (x): sizes, bars and sorting only count data that nothing else shares
• Deleting shared data: the prompt shows what it really frees, and the message afterwards no longer
  claims the shared part was freed
• The header shows the filesystem's compression setting next to its type, like btrfs zstd:3
  (btrfs, f2fs, bcachefs)

Browsing

• Filter by name (/): the list narrows as you type, matches are highlighted, and the list border
  shows how many entries match and their total size. Smart case: lowercase ignores case, a capital
  letter makes it exact. Enter keeps the filter, Esc clears it, opening another folder drops it

Deleting

• Mark entries with Space, across folders, and delete them together: d shows one review with
  the list and the total, Esc unmarks everything

Fixed

• The selected row's percent, the empty part of its bar and its tags were invisible
  (gray on the gray highlight); they now use the normal text color

v0.1.0

First release.

Scanning

• Parallel scan on all CPU cores with a live progress screen; Esc cancels, -t limits threads
• Apparent size and real space on disk; hard links counted once; sparse files stay sparse
• Stays on one filesystem by default (--cross-fs to include other mounts)
• btrfs subvolumes and ZFS datasets of one pool are treated as one filesystem
• /proc, /sys and other kernel filesystems, and btrfs snapshot folders, are never counted
• On FUSE drives that report no disk usage (sshfs, rclone), sizes are estimated and marked ≈

Browsing

• Dashboard layout: breadcrumb and filesystem gauge, file list with bars, details pane, key hints
• Sort by size, name, item count or last change, in either direction
• Details pane with space saved by compression or sparse files, share of the folder,
  biggest items inside, and breakdowns by file type and by age
• Age heat (a) and a cold view (A) for data untouched for a year or six months
• Owners: package (pacman, dpkg), git repo, Flatpak, Steam game, Docker, app cache/config/data,
  and system files no package claims (unowned); o shows tags, O ranks owners
• Colors follow the terminal's palette; --no-icons for terminals without a Nerd Font

Drives

• Drives list (D) with type and usage; Enter scans a mounted drive on demand
• Notices drives being mounted or unmounted while open; g opens a new drive, r rescans
• Steps out automatically when the open folder's drive is unmounted

Deleting

• d asks for confirmation; only y deletes
• Removes everything it can and reports what it could not; totals update without a rescan
• Never enters a mounted drive inside the folder being deleted
• Warns before deleting files a package installed; -r turns deleting off

Root

• install.sh installs to /usr/local/bin so sudo nudu works
• S restarts nudu with sudo when folders were unreadable; a root badge shows root mode