diff --git a/mevenson/simulation/glacier.asd b/mevenson/simulation/glacier.asd
new file mode 100644
index 0000000..31fbb6e
--- /dev/null
+++ b/mevenson/simulation/glacier.asd
@@ -0,0 +1,7 @@
+(defsystem glacier
+  :version "0.0.1"
+  :depends-on (jsown)
+  :components ((:module source
+                :pathname "./"
+                :components ((:file "glacier")))))
+                
diff --git a/mevenson/simulation/glacier.lisp b/mevenson/simulation/glacier.lisp
new file mode 100644
index 0000000..de8d872
--- /dev/null
+++ b/mevenson/simulation/glacier.lisp
@@ -0,0 +1,44 @@
+(defpackage glacier
+  (:use :cl)
+  (:export #:grind))
+
+(in-package glacier)
+
+(defun json-parameters ()
+  `($.consensus_settings.glacier.evidence_alpha
+    4/5
+    $.consensus_settings.glacier.evidence_alpha_2
+    2/5
+    $.consensus_settings.glacier.look_ahead
+    997
+    $.consensus_settings.query.initial_query_size
+    100
+    $.consensus_settings.query_multiplier
+    2
+    $.consensus_settings.max_multiplier
+    1
+    $.byzantine_settings.total_size
+    ,(expt 10 4)
+    $.byzantine_settings.honest
+    1
+    $.distribution.yes
+    1/2
+    $.distribution.no
+    1/2))
+
+(defun grind ()
+  (let* ((template
+           (probe-file "~/work/consensus-prototypes/etc/glacier.json"))
+         (json
+           (alexandria:read-file-into-string template))
+         (result
+           (jsown:parse json)))
+    ;; TODO set the template based on the parameters
+    (values
+     (uiop:run-program '("./target/release-opt/consensus-simulations"
+                         "--input-settings" "etc/glacier.json"
+                         "--output-file" "var/glacier.output")) ;; name the output something sensible
+     result
+     template)))
+
+
diff --git a/mevenson/simulation/simulation.org b/mevenson/simulation/simulation.org
index c5e7fc8..dc38bf3 100644
--- a/mevenson/simulation/simulation.org
+++ b/mevenson/simulation/simulation.org
@@ -32,7 +32,7 @@ Simulate up to 10^4 nodes adding 10, 100, 1000?
 
 #+caption: use these on a base templateo
 | a1               | $.consensus_settings.glacier.evidence_alpha   |
-| a2               | $.consensus_settings                          |
+| a2               | $.consensus_settings.glacier.evidence_alpha_2 |
 | l                | $.consensus_settings.glacier.look_ahead       |
 | k                | $.consensus_settings.query.initial_query_size |
 | k_multiplier     | $.consensus_settings.query_multiplier         |
@@ -40,7 +40,8 @@ Simulate up to 10^4 nodes adding 10, 100, 1000?
 | n                | $.byzantine_settings.total_size               |
 | n_honest         | $.byzantine_settings.honest                   |
 | initial yes      | $.distribution.yes                            |
-| intial no        | $.distribution.no                                   |
+| intial no        | $.distribution.no                             |
+|                  |                                               |
 
 ** TODO Double check that this is all we need.