diff --git a/README.org b/README.org
index 8a311da..2d02a0c 100644
--- a/README.org
+++ b/README.org
@@ -1,5 +1,29 @@
 * c.thi.ng
 
+* Contents                                                         :toc_3_gh:
+ - [[#cthing][c.thi.ng]]
+     - [[#overview][Overview]]
+         - [[#data-structures][Data structures]]
+         - [[#memory-management][Memory management]]
+         - [[#math][Math]]
+         - [[#simulation][Simulation]]
+         - [[#geometry][Geometry]]
+     - [[#examples][Examples]]
+         - [[#1d2d-cellular-automata][1D/2D Cellular automata]]
+         - [[#diffusion-limited-aggregation][Diffusion-Limited Aggregation]]
+         - [[#poisson-disc-sampling-image-conversion][Poisson disc sampling image conversion]]
+         - [[#verlet-physics][Verlet physics]]
+     - [[#requirements][Requirements]]
+     - [[#dependencies][Dependencies]]
+     - [[#build--test][Build & test]]
+     - [[#build-static-library][Build static library]]
+     - [[#build-source-x-ref][Build source x-ref]]
+     - [[#disassemble--list-symbols][Disassemble & list symbols]]
+     - [[#compile-with-emscripten][Compile with emscripten]]
+     - [[#build-customization][Build customization]]
+     - [[#contributors][Contributors]]
+     - [[#license][License]]
+
 ** Overview
 
 WIP
@@ -200,16 +224,26 @@ nm -g -j bin/release/libcthing.a | grep --color=never _ct_
 ** Compile with emscripten
 
 #+BEGIN_SRC shell
-# help / usage
-./compile -h
-
-# compile with tests, closure pass & remove duplicate fns
-./compile -tdc
-
-python3 -m http.server
-
-# in browser dev console - http://localhost:8000/
-# geom(); geom._main()
+  # help / usage
+  ./compile -h
+  # Usage:
+  #   -a     : separate asm.js output
+  #   -c     : enable Closure compiler step
+  #   -d     : remove duplicate functions
+  #   -D SYM : add define
+  #   -h     : show this help
+  #   -k     : enable runtime checks
+  #   -m     : enable memory checks
+  #   -s     : enable SSE (SIMD.js)
+  #   -t     : include tests
+
+  # compile with tests, closure pass & remove duplicate fns
+  ./compile -tdc
+
+  python3 -m http.server
+
+  # in browser dev console - http://localhost:8000/
+  cthing(); cthing._main()
 #+END_SRC
 
 ** Build customization
diff --git a/compile b/compile
index 0c92675..35d57e6 100755
--- a/compile
+++ b/compile
@@ -7,8 +7,8 @@ SRC="src/data/adjacency.c src/data/cons.c src/data/consrc.c src/data/hashset.c s
 TESTS=
 CFLAGS="-std=c11 -Os -Isrc"
 EMFLAGS="-s ASM_JS=1 -s ASSERTIONS=0 -s INVOKE_RUN=0 -s AGGRESSIVE_VARIABLE_ELIMINATION=1 -s MODULARIZE=1 -s NO_EXIT_RUNTIME=1 -s TOTAL_MEMORY='48*1024*1024'"
-OUT=geom.js
-MIN=geom.min.js
+OUT=cthing.js
+MIN=cthing.min.js
 
 usage()
 {
@@ -70,7 +70,7 @@ time emcc $CFLAGS \
      --emit-symbol-map \
      $EMFLAGS \
      -s "TOTAL_STACK=1*1024*1024" \
-     -s "EXPORT_NAME='geom'" \
+     -s "EXPORT_NAME='cthing'" \
      -o $OUT \
      $SRC \
      $TESTS
diff --git a/index.html b/index.html
index 3211602..b628ce4 100644
--- a/index.html
+++ b/index.html
@@ -10,8 +10,8 @@
     </div>
     <!--
     <script>var Module = Module || {};</script>
-    <script src="geom.asm.js" type="text/javascript"></script>
+    <script src="cthing.asm.js" type="text/javascript"></script>
     -->
-    <script src="geom.min.js" type="text/javascript"></script>
+    <script src="cthing.min.js" type="text/javascript"></script>
   </body>
 </html>
diff --git a/postprocess.js b/postprocess.js
index 260ac26..c45d0f1 100644
--- a/postprocess.js
+++ b/postprocess.js
@@ -1,6 +1,6 @@
 fs=require('fs');
-src=fs.readFileSync('geom.js','utf8');
+src=fs.readFileSync('cthing.js','utf8');
 src=src.replace(/_ct_\w+_\d+:[\w\$]+,?/g, '');
 src=src.replace(/\w+\._ct_\w+_\d+\=\w+._ct_\w+_\d+;/g, '');
 src=src.replace(/\s{2,}/g,' ');
-fs.writeFileSync('geom.min.js', src, 'utf8');
+fs.writeFileSync('cthing.min.js', src, 'utf8');