Button Pusher is a Windows desktop tool that lets you create your own text shortcuts. You add a key (like a or f1) and the full sentence you want it to type, then toggle it ON. When it’s ON, pressing your chosen key will instantly type the full text for you anywhere (messages, forms, emails, etc). Your shortcuts are saved automatically, so they’re still there next time you open the app. If Windows warns you, choose More info → Run anyway (only if you trust this file and you downloaded it from Another Product Invented).
Warning: Only use single letters/keys (or proper hotkey combos) for the Code field. Using a full word as the code can cause misfires or inconsistent behaviour.