PhraseExpress has streamlined my workflow and productivity for more than a decade. Setting it up is a breeze, and it integrates seamlessly with all my applications. The autocomplete function is saving me countless keystrokes. Kudos to the developers for the intuitive design and robust performance. Strongly recommended. There also is an ios version but I am on Android. A linux version would make it perfect.
GitBook - Modern Publishing, Simply taking your books from ideas to finished, polished books.
TextExpander - TextExpander: Communicate Smarter. Gather, Perfect, Share Your Knowledge. Recall your best words instantly, repeatedly.
MkDocs - Project documentation with Markdown.
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Docusaurus - Easy to maintain open source documentation websites
AutoHotkey - The ultimate automation scripting language for Windows.