diff --git a/512.myco b/512.myco
deleted file mode 100644
index 610fc1d..0000000
--- a/512.myco
+++ /dev/null
@@ -1,4 +0,0 @@
-= 512
-https://lock.cmpxchg8b.com/spreadsheet.html
-
-Comparison of several terminal spreadsheets.
\ No newline at end of file
diff --git a/576.myco b/576.myco
new file mode 100644
index 0000000..bd7fc27
--- /dev/null
+++ b/576.myco
@@ -0,0 +1,8 @@
+= 576
+https://wiki.c2.com/?FileSystemAlternatives
+
+> I am tired of hierarchical FileSystems. They grow into big messes over time (LimitsOfHierarchies). Let's discuss alternatives. Some have suggested using various kinds of databases so that one can query or view based on a wide variety of potentially orthogonal traits.
+
+The C2 Ancients have good ideas.
+
+P. S. Trying to save this page in Betula shows how bad and unfriendly the new “design” of WikiWikiWeb is.
\ No newline at end of file
diff --git a/Console Spreadsheets..myco b/Console Spreadsheets..myco
deleted file mode 100644
index 42a185a..0000000
--- a/Console Spreadsheets..myco	
+++ /dev/null
@@ -1,4 +0,0 @@
-= Console Spreadsheets.
-https://lock.cmpxchg8b.com/spreadsheet.html
-
-Comparison of several terminal spreadsheets.
\ No newline at end of file
diff --git a/File System Alternatives.myco b/File System Alternatives.myco
new file mode 100644
index 0000000..275dd54
--- /dev/null
+++ b/File System Alternatives.myco	
@@ -0,0 +1,8 @@
+= File System Alternatives
+https://wiki.c2.com/?FileSystemAlternatives
+
+> I am tired of hierarchical FileSystems. They grow into big messes over time (LimitsOfHierarchies). Let's discuss alternatives. Some have suggested using various kinds of databases so that one can query or view based on a wide variety of potentially orthogonal traits.
+
+The C2 Ancients have good ideas.
+
+P. S. Trying to save this page in Betula shows how bad and unfriendly the new “design” of WikiWikiWeb is.
\ No newline at end of file