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+file for Debian
+===============
+
+additional magic files
+----------------------
+
+How users can inject their own magics for fun:
+
+ 1. open /etc/magic and /etc/magic.mime with a text editor, as root,
+ and add your own magics.
+
+ 2. have fun.
+
+
+How package maintainers can inject their own magics for profit:
+
+ 1. place your magics as plain text files in
+ /usr/share/file/${binary_package_name}.
+
+ 2. call 'file --compile ${binary_package_name}' from /usr/share/file
+ in your postinst script (maybe we should have a trigger for that
+ at some point). this will produce the binary magics
+ /usr/share/file/${binary_package_name}.mgc.
+
+ 3. remove the binary magics in your postrm script.
+
+ 4. profit.
+
+
+seccomp support
+---------------
+
+Starting with version 1:5.37-1, file is built using libseccomp. This
+will introduce a regression if applications call the program with the
+--uncompress option, and file(1) needs the help of external programs
+for uncompression.