diff --git a/.github/workflows/build-ci-image.yaml b/.github/workflows/build-ci-image.yaml
index 7f040f2..960ffa7 100644
--- a/.github/workflows/build-ci-image.yaml
+++ b/.github/workflows/build-ci-image.yaml
@@ -9,7 +9,7 @@ on:
       - "*"
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-m
     steps:
       - name: Checkout
         uses: actions/checkout@v3
diff --git a/cli/README.md b/cli/README.md
index 56b2206..36c93f1 100644
--- a/cli/README.md
+++ b/cli/README.md
@@ -58,3 +58,20 @@ todo
 
 ### Prove
 todo
+
+### Estimate
+
+You can estimate the number of cycles and segments using risc0 emulation to step through an ELF by passing the `estimate` command the path to a manifest.json and an inputs file (if required).
+
+```
+bonsol -k ./keypair.json -u http://localhost:8899 estimate \
+    --manifest-path program/manifest.json \
+    --input-file program/inputs.json \
+    --max-cycles 16777216 # this is the default
+
+# Example Output:
+#
+# User cycles: 3380
+# Total cycles: 65536
+# Segments: 1
+```