diff --git a/513.myco b/513.myco
deleted file mode 100644
index 802fe95..0000000
--- a/513.myco
+++ /dev/null
@@ -1,4 +0,0 @@
-= 513
-https://carlos.bueno.org/2010/09/paper-internet.html
-
-Build your time capsule with epoxy.
\ No newline at end of file
diff --git a/577.myco b/577.myco
new file mode 100644
index 0000000..07c2512
--- /dev/null
+++ b/577.myco
@@ -0,0 +1,6 @@
+= 577
+https://pubkit.net/
+
+> Quickly design and test ActivityPub objects with mock servers of popular projects like Mastodon and Pixelfed.
+
+Thanks, just in time.
\ No newline at end of file
diff --git a/A Paper Internet.myco b/A Paper Internet.myco
deleted file mode 100644
index 9cd4239..0000000
--- a/A Paper Internet.myco	
+++ /dev/null
@@ -1,4 +0,0 @@
-= A Paper Internet
-https://carlos.bueno.org/2010/09/paper-internet.html
-
-Build your time capsule with epoxy.
\ No newline at end of file
diff --git a/PubKit.myco b/PubKit.myco
new file mode 100644
index 0000000..727c36d
--- /dev/null
+++ b/PubKit.myco
@@ -0,0 +1,6 @@
+= PubKit
+https://pubkit.net/
+
+> Quickly design and test ActivityPub objects with mock servers of popular projects like Mastodon and Pixelfed.
+
+Thanks, just in time.
\ No newline at end of file