documentation

README.md

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+# Documentation
+
+### File access
+
+Files are stored with their SHA-1 value as their name, with the first two digits being the subfolder name. For each user files belonging to them a represented in a .json file, which is managed by a central process; on runtime contents are stored in memory for thread safety.
+
+Potential issues:
+- Accessing actual files
+- Safing on exit