diff --git a/crowbook/README.md b/crowbook/README.md
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+
+## Installation ##
+
+````
+rustup
+cargo install crowbook
+````
+
+pdf generation needs xelatex
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diff --git a/mdbook/README.md b/mdbook/README.md
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+
+## Installation ##
+
+``
+rustup
+cargo install mdbook
+cargo install mdbook-epub
+````
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diff --git a/sphinx/README.md b/sphinx/README.md
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+
+## Installation ##
+
+``
+python3 -m venv venv
+source venv/bin/activate
+pip install sphinxcontrib-plantuml
+pip install myst-parser
+````
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