diff --git a/.eslintrc.json b/.eslintrc.json
index baa6de9..bf347b0 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -54,7 +54,7 @@
                     "test/**/*.ts"
                 ],
                 "optionalDependencies": false,
-                "peerDependencies": false
+                "peerDependencies": true
             }
         ],
         "import/no-unresolved": [
diff --git a/README.md b/README.md
index 5c3002e..b3a7193 100644
--- a/README.md
+++ b/README.md
@@ -36,10 +36,12 @@ Neither project currently uses the following functionality:
 
 ## Prerequisites
 
-1. Node.js 16 and npm 6 (Node.js 14 is also supported)
-1. [Volta](https://volta.sh/) is recommended for development
-1. Python (at least 3.7, but less than 3.11)
-1. An appropriate [C++ build toolchain for your machine](https://github.com/nodejs/node-gyp#on-unix)
+-   Node.js 16 and npm 6 (Node.js 14 is also supported)
+-   [Volta](https://volta.sh/) is recommended for development
+-   For Node/server-side transforms:
+    -   Python (at least 3.7, but less than 3.11)
+    -   An appropriate [C++ build toolchain for your machine](https://github.com/nodejs/node-gyp#on-unix)
+    -   The `libxslt` library is now a peer dependency, and must be installed alongside `enketo-transformer`
 
 ## Interactive web demo
 
diff --git a/package-lock.json b/package-lock.json
index 8f65d76..68f838a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1252,7 +1252,8 @@
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             "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.9.tgz",
-            "integrity": "sha1-kbR5JYinc4wl813W9jdSovh3YTU="
+            "integrity": "sha1-kbR5JYinc4wl813W9jdSovh3YTU=",
+            "dev": true
         },
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@@ -1326,7 +1327,8 @@
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             "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
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+            "dev": true
         },
         "ansi-styles": {
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@@ -1340,12 +1342,14 @@
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+            "dev": true
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         "are-we-there-yet": {
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             "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz",
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+            "dev": true,
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@@ -2114,7 +2118,8 @@
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+            "dev": true
         },
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@@ -2136,6 +2141,7 @@
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+            "dev": true,
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@@ -2175,6 +2181,7 @@
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+            "dev": true,
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@@ -2330,7 +2337,8 @@
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+            "dev": true
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@@ -2359,7 +2367,8 @@
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+            "dev": true
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@@ -2397,7 +2406,8 @@
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-            "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
+            "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+            "dev": true
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@@ -2408,7 +2418,8 @@
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-            "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4="
+            "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
+            "dev": true
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@@ -2453,7 +2464,8 @@
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-            "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
+            "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
+            "dev": true
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         "corser": {
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@@ -2623,7 +2635,8 @@
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-            "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA=="
+            "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==",
+            "dev": true
         },
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@@ -2643,7 +2656,8 @@
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-            "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o="
+            "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
+            "dev": true
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@@ -2664,7 +2678,8 @@
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+            "integrity": "sha512-pGjwhsmsp4kL2RTz08wcOlGN83otlqHeD/Z5T8GXZB+/YcpQ/dgo+lbU8ZsGxV0HIvqqxo9l7mqYwyYMD9bKDg==",
+            "dev": true
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@@ -2737,7 +2752,8 @@
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+            "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+            "dev": true
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@@ -4144,7 +4160,8 @@
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+            "dev": true
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@@ -4260,6 +4277,7 @@
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+            "dev": true,
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@@ -4267,7 +4285,8 @@
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-            "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
+            "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
+            "dev": true
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@@ -4309,6 +4328,7 @@
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@@ -4757,7 +4782,8 @@
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@@ -4937,7 +4965,8 @@
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@@ -5135,7 +5164,8 @@
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+            "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
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diff --git a/package.json b/package.json
index a58f10a..6b0a841 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,6 @@
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@@ -118,6 +117,7 @@
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+        "libxslt": "0.10.0",
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@@ -129,6 +129,14 @@
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     },
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     "volta": {
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