Extend the zsh shellAliases in shell.nix with a curated, on-by-default
set: navigation (.., ..., ....), a git block (g, gst, ga/gaa, gc/gcm,
gco/gsw, gb, gd/gds, gl/glg, gp/gpl, gf), a nix block (ns, nr, nfu, nfc,
nsearch, ngc), and path/reload. Same restraint as rg/fd: short where it
helps but never shadowing a real binary — the git set keeps off gs
(ghostscript), and the system/home rebuilds keep their sys-update /
home-update names rather than cryptic aliases.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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