.gitconfig: don't update-refs

nvim: disable tree-sitter indent, enable smartindent

nvim: s/coc/cmp/, s/plug/lazy/

wezterm: remember window size on startup

wezterm, fish: strip multiplexer, s/tide/hydro/

wezterm: evaluate it; remove tmux

.ssh: clean detritus

fish: remove stray files for fisher, tide

fish: remove stray file

fish: ignore tide, fisher

fish: upgrade fisher, tide

Brewfile: trim useless formulae

Brewfile: bundle dump now includes vscode packages

fish, zsh: opam, rbenv config

Brewfile: strip useless candidates; re-dump

bin: clean detritus

.gitconfig: clean up grep; replaced by rg

.gitconfig: use cf for clang-format

.gitconfig: enable colorized blame

.gitconfig: turn off a couple of advice vars

.gitconfig, bin: minor tweaks; add a couple of symlinks