apple-touchbar

Exclusively requires macOS and iTerm2, making it useless for users on other operating systems or terminal emulators, limiting its broader adoption.

Automatic configuration generation depends on Ruby 2.3.4 or later, adding an extra dependency that some minimalist or non-Ruby environments might not have.

Advanced customization involves writing custom Zsh functions with specific syntax (e.g., create_key, set_state), which can be error-prone and daunting for users unfamiliar with Zsh scripting.

As a niche plugin, it lacks a rich ecosystem of community-shared configs or templates, forcing users to build most setups from scratch.