diff --git a/ahs.md b/ahs.md
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--- a/ahs.md
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@@ -1,4 +1,11 @@
 # ahs
 
 - [[pull]] [[annotated-hub-of-science]]
+- [[hub]]
+  - [[components]]
+    - [[hillel]]
+      - [[p2p repository]]
+      - its storage aspect could be [[ipfs]]
+      - plus [[fatcat]]?
+    - [[starling]]
 
diff --git a/fatcat.md b/fatcat.md
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@@ -0,0 +1,6 @@
+# fatcat
+
+- [[go]] https://fatcat.wiki/
+  - [[examples]]
+    - https://fatcat.wiki/release/nglnnebydvdi5pdbucgn4iswse
+    - https://fatcat.wiki/release/mjpvw5p7vrfnjnjkbewaij2e34
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