Set Up Keyboard Shortcuts and Text Expanders to Save Time

Act as a micro-productivity and keyboard efficiency coach. I type the same phrases, email closings, links, and snippets dozens of times per day. I want to set up a text expander system to automate repetitive typing. My operating system is [OS] and my most repeated text snippets are [REPEATED_SNIPPETS]. Design a text expander setup covering: the best tool for my OS (TextExpander, Espanso, or built-in options), the shortcut naming convention to use, the top 10 snippets to set up first, how to set up dynamic snippets that include today's date or recipient name, and an estimate of weekly time savings.