diff --git a/.gitignore b/.gitignore
index ebe4b53..9616d58 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .idea/
-node_modules
\ No newline at end of file
+node_modules
+deps.json*
\ No newline at end of file
diff --git a/bin/compile b/bin/compile
index 6e7f89a..962f660 100644
--- a/bin/compile
+++ b/bin/compile
@@ -27,3 +27,13 @@ CACHE_DIR=${CACHE_DIR} \
 ENV_DIR=${ENV_DIR} \
 SOURCE_VERSION=${SOURCE_VERSION} \
 node ${BP_DIR}/lib/upload.js | output "$LOG_FILE"
+
+
+### Send deps to Frontier Dashboard
+if [ -f $1/package.json ]; then
+    printf "\nFrontier Dashboard steps:\n"
+    printf "Scanning deps... " && npm ls --json --prefix ${BUILD_DIR} > deps.json && printf "Done.\n"
+    printf "Flattening deps... " && BUILD_DIR=${BUILD_DIR} BP_DIR=${BP_DIR} node ${BP_DIR}/bin/flatten-deps.js && printf "Done.\n"
+    printf "Sending deps to Frontier Dashboard... " curl -X POST -H "x-api-key: hmPlMe6As2aNih6Dg3sRj8mHhiM9mDWo1bldZoaz" -d "$(cat ./deps.json.flat)" https://tiagtww9kj.execute-api.us-east-1.amazonaws.com/dev/app/deploy/snapshot && printf "Done.\n"
+    printf "Done with Frontier Dashboard steps\n"
+fi
diff --git a/bin/deps-test.sh b/bin/deps-test.sh
new file mode 100644
index 0000000..7d6fc55
--- /dev/null
+++ b/bin/deps-test.sh
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# bin/compile <build-dir> <cache-dir> <env-dir>
+
+### Configure environment
+
+set -o errexit    # always exit on error
+set -o pipefail   # don't ignore exit codes when piping output
+set -o nounset    # fail on unset variables
+unset GIT_DIR     # Avoid GIT_DIR leak from previous build steps
+
+### Send deps to Frontier Dashboard
+printf "\nFrontier Dashboard steps:\n"
+printf "$(ls -la)"
+printf "Scanning deps... " && npm ls --json > deps.json && printf "Done.\n"
+printf "Flattening deps... " && node bin/flatten-deps.js && printf "Done.\n"
+printf "Sending deps to Frontier Dashboard... " curl -X POST -H "x-api-key: hmPlMe6As2aNih6Dg3sRj8mHhiM9mDWo1bldZoaz" -d "$(cat ./deps.json.flat)" https://tiagtww9kj.execute-api.us-east-1.amazonaws.com/dev/app/deploy/snapshot && printf "Done.\n"
+printf "Done with Frontier Dashboard steps\n"
diff --git a/bin/flatten-deps.js b/bin/flatten-deps.js
new file mode 100644
index 0000000..e86b29c
--- /dev/null
+++ b/bin/flatten-deps.js
@@ -0,0 +1,76 @@
+const path = require('path');
+const fs = require('fs');
+const semverGt = require('semver/functions/gt')
+const semverValid = require('semver/functions/valid')
+// heroku buildpack dir or local test
+const buildDir = process.env.BUILD_DIR || '../'
+const bpDir = process.env.BP_DIR || '../'
+const deps = require(path.join(bpDir, 'deps.json'));
+// get host app's package.json
+const package = require(path.join(buildDir, 'package.json'));
+console.log('Flattening dependencies for', package.name, '...');
+
+const output = {
+  name: deps.name,
+  version: deps.version
+}
+
+const recursiveSearch = (obj, searchKey, results = []) => {
+  const r = results;
+  Object.keys(obj).forEach(key => {
+    const value = obj[key];
+    // push package version
+    if (key !== searchKey && typeof value === 'object' && value.hasOwnProperty('version')) {
+      r.push({ name: key, version: value.version });
+    }
+    // recurse into deps
+    if (key === searchKey && typeof value === 'object') {
+      recursiveSearch(value, searchKey, r);
+    }
+    // recurse into sub-deps
+    if (typeof value === 'object' && value.hasOwnProperty(searchKey)) {
+      recursiveSearch(value[searchKey], searchKey, r);
+    }
+  });
+  return r;
+};
+
+function findDepVersion(deps, searchKey) {
+  let dep = {name: searchKey};
+  for (const d of deps) {
+    if (d.name === searchKey) {
+      dep = d;
+      break;
+    }
+  };
+  return dep
+}
+
+const deepDeps = recursiveSearch(deps, 'dependencies');
+console.log("Deep dependency count:", deepDeps.length);
+
+// dedupe deps, keeping the highest semver version for each
+const dedupedDeps = deepDeps.reduce((acc, dep) => {
+  const existing = acc.find(d => d.name === dep.name);
+  if (existing) {
+    console.log('exists, versions:', existing.version, dep.version);
+    if (semverValid(existing.version) && semverValid(dep.version) && semverGt(dep.version, existing.version)) {
+      acc.splice(acc.indexOf(existing), 1, dep);
+    }
+  } else {
+    acc.push(dep);
+  }
+  return acc;
+}, []);
+console.log("Deduped dependency count:", dedupedDeps.length);
+
+
+// normal deps
+output.deps = package.dependencies ? Object.keys(package.dependencies).map(d => findDepVersion(dedupedDeps, d)): [];
+output.devDeps = package.devDependencies ? Object.keys(package.devDependencies).map(d => findDepVersion(dedupedDeps, d)) : [];
+output.peerDeps = package.peerDependencies ? Object.keys(package.peerDependencies).map(d => findDepVersion(dedupedDeps, d)) : [];
+// deps that aren't in deps, devDeps, or peerDeps
+output.secondaryDeps = dedupedDeps.filter(d => !output.deps.includes(d) && !output.devDeps.includes(d) && !output.peerDeps.includes(d));
+
+// Write to file
+fs.writeFileSync(path.join(bpDir, 'deps.json.flat'), JSON.stringify(output, null, 2));
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index ebf3498..4de20b1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -308,6 +308,14 @@
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
       "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
+    "lru-cache": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
+      "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
+      "requires": {
+        "yallist": "^4.0.0"
+      }
+    },
     "merge2": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/merge2/-/merge2-1.4.1.tgz",
@@ -437,6 +445,14 @@
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.1.tgz",
       "integrity": "sha1-e45lYZCyKOgaZq6nSEgNgozS03o="
     },
+    "semver": {
+      "version": "7.3.7",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.7.tgz",
+      "integrity": "sha512-QlYTucUYOews+WeEujDoEGziz4K6c47V/Bd+LjSSYcA94p+DmINdf7ncaUinThfvZyu13lN9OY1XDxt8C0Tw0g==",
+      "requires": {
+        "lru-cache": "^6.0.0"
+      }
+    },
     "shelljs": {
       "version": "0.8.4",
       "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.4.tgz",
@@ -492,6 +508,11 @@
       "version": "9.0.7",
       "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-9.0.7.tgz",
       "integrity": "sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0="
+    },
+    "yallist": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A=="
     }
   }
 }
diff --git a/package.json b/package.json
index 147db69..18c9d44 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,16 @@
     "aws-sdk": "^2.5.0",
     "del": "^6.0.0",
     "glob": "^7.0.5",
+    "lodash": "^4.15.0",
+    "mime-types": "^2.1.11",
+    "semver": "^7.3.7",
+    "shelljs": "^0.8.4"
+  },
+  "devDependencies": {
+    "async": "^3.2.0",
+    "aws-sdk": "^2.5.0"
+  },
+  "peerDependencies": {
     "lodash": "^4.15.0",
     "mime-types": "^2.1.11",
     "shelljs": "^0.8.4"