diff --git a/README.md b/README.md
index 38075c7..cc9c717 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,25 @@
 # konilo-extensions
 
-Additional block sets for use with Konilo. These need to be added to your personal block set before use, and most will require the basic 128 blocks from the main repository to be loaded (specifically, the (std) and (termina) sets). 
-
-This repository tracks vocabularies that extend the Konilo system. This includes vocabularies for host-specific functionality (e.g., Teensy & x86 i/o, and X11) as well as portable vocabularies (such as additional math words)
\ No newline at end of file
+Additional block sets for use with Konilo. These need to be
+added to your personal block set before use, and most will
+require the basic 128 blocks from the main repository to be
+loaded (specifically, the (std) and (termina) sets).
+
+This repository tracks vocabularies that extend the Konilo
+system. This includes vocabularies for host-specific function-
+ality (e.g., Teensy & x86 i/o, and X11) as well as portable
+vocabularies (such as additional math words)
+
+# The Extensions
+
+```
++----------------------+---------------------------------------+
+| bos                  | block management words                |
+| drawing              | crc's drawing vocabulary. Basic shape |
+|                      | and pixel words, for x11 & x86-native |
+| teensy4              | interface w/the Teensy 4 i/o devices  |
+| x86                  | access to physical ram, i/o ports, &  |
+|                      | devices (for ilo-x86-native)          |
++----------------------+---------------------------------------+
+```
+
diff --git a/bos.blocks b/bos.blocks
new file mode 100644
index 0000000..c42c4d8
Binary files /dev/null and b/bos.blocks differ