Developer shares time-saving zsh/bash shell shortcuts built over years of daily use

A software developer has published a collection of custom zsh and bash shell functions and aliases that streamline repetitive command-line tasks. The shortcuts include a smart Git branch switcher, a hard-reset command called 'nah', and wrappers that automatically create parent directories when needed. Other utilities handle tasks like batch-converting iPhone HEIC photos to JPG or PNG using ImageMagick, and safely replacing files by moving originals to the Trash before editing. The developer notes that while each shortcut saves only a second or two individually, the cumulative time savings are significant given how frequently they are used.