diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d20e6fd..5282273 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,7 +7,7 @@ on:
     branches: ["main", "prod"]
 
 jobs:
-  check:
+  checkSignerNode:
     strategy:
       fail-fast: true
 
@@ -18,15 +18,27 @@ jobs:
           submodules: recursive
 
       - uses: actions/setup-node@v3
-        with:
-          node-version: 18
+
+      - name: Install dependencies
+        run: bun i
+
+      - name: Build nkoWorker
+        run: make build/nkoWorker.js
 
       - name: Build signerNode
-        run: |
-          yarn
-          make build/signerNode.js
+        run: make build/signerNode.js
+
+  checkLightNode:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+
+      - uses: actions/setup-node@v3
+
+      - name: Install dependencies
+        run: bun i
 
       - name: Build lightNode
-        run: |
-          yarn
-          make build/lightNode.js
+        run: make build/lightNode.js
diff --git a/.gitignore b/.gitignore
index dba2db4..e91c643 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 .DS_Store
-*.lock
+.wrangler
+*lock*
 *.vars
 /build
 /node_modules
diff --git a/Makefile b/Makefile
index d133b40..d3c395b 100644
--- a/Makefile
+++ b/Makefile
@@ -2,10 +2,13 @@ include signerNode/signerNode.config
 
 WORKER_NAME = $(subst $\",,$(CF_WORKER_NAME))
 
+lib = node_modules/@kimlikdao/lib
+
 include edevlet/Makefile
 include lightNode/Makefile
 include signerNode/Makefile
 include workers/Makefile
+include mina/Makefile
 
 build/BEARER_TOKEN:
 	mkdir -p $(dir $@)
diff --git a/edevlet/Makefile b/edevlet/Makefile
index e2fd450..722012d 100644
--- a/edevlet/Makefile
+++ b/edevlet/Makefile
@@ -1,13 +1,13 @@
 include edevlet/test/Makefile
 
 build/edevlet/nkoParser.js: edevlet/nkoParser.js edevlet/pdfjs.d.js \
-    lib/crosschain/*.d.js \
-    lib/did/*.d.js \
-    lib/ethereum/*.d.js \
-    lib/node/error.d.js lib/node/error.js \
-    lib/node/nvi.d.js
+    $(lib)/crosschain/*.d.js \
+    $(lib)/did/*.d.js \
+    $(lib)/ethereum/*.d.js \
+    $(lib)/node/error.d.js $(lib)/node/error.js \
+    $(lib)/node/nvi.d.js
 	mkdir -p $(dir $@)
-	yarn google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
+	bun google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
                              --jscomp_error=unusedLocalVariables \
                              --jscomp_error=strictCheckTypes \
                              --jscomp_warning=reportUnknownTypes \
@@ -19,7 +19,7 @@ build/edevlet/nkoParser.js: edevlet/nkoParser.js edevlet/pdfjs.d.js \
                              --entry_point $< \
                              --js $^ \
                              --js_output_file $@
-	yarn uglifyjs $@ -m -c toplevel,unsafe,drop_console -o $@
+	bun uglifyjs $@ -m -c toplevel,unsafe,drop_console -o $@
 	wc $@
 
 build/edevlet/pdfjs.js: edevlet/pdfjs.js \
@@ -27,7 +27,7 @@ build/edevlet/pdfjs.js: edevlet/pdfjs.js \
     edevlet/pdf.js/src/shared/*.js edevlet/pdf.js/src/display/*.js \
     edevlet/pdf.js/src/core/*.js edevlet/pdf.js/src/core/xfa/*.js
 	mkdir -p $(dir $@)
-	yarn google-closure-compiler -W VERBOSE -O SIMPLE \
+	bun google-closure-compiler -W VERBOSE -O SIMPLE \
                              --language_in ECMASCRIPT_NEXT \
                              --module_resolution NODE \
                              --assume_function_wrapper \
@@ -35,25 +35,25 @@ build/edevlet/pdfjs.js: edevlet/pdfjs.js \
                              --entry_point $< \
                              --js $^ \
                              --js_output_file $@.tmp
-	yarn uglifyjs $@.tmp -m -c toplevel,unsafe,drop_console -o $@.tmp
+	bun uglifyjs $@.tmp -m -c toplevel,unsafe,drop_console -o $@.tmp
 	printf "'use strict';(()=>{" | cat - $@.tmp > $@
 	printf "})();" >> $@
 	wc $@
 
 build/oauth2Worker.js: edevlet/oauth2Worker.js edevlet/oauth2Worker.d.js \
     edevlet/validation.js \
-    lib/api/oauth2.d.js \
-    lib/cloudflare/types.d.js lib/cloudflare/moduleWorker.d.js \
-    lib/crosschain/*.js \
-    lib/crypto/sha3.js \
-    lib/crypto/modular.js lib/crypto/secp256k1.js \
-    lib/did/*.d.js lib/did/section.js lib/did/decryptedSections.js \
-    lib/ethereum/*.d.js lib/ethereum/evm.js \
-    lib/node/error.d.js lib/node/error.js lib/node/nvi.d.js \
-    lib/util/çevir.js \
+    $(lib)/api/oauth2.d.js \
+    $(lib)/cloudflare/types.d.js $(lib)/cloudflare/moduleWorker.d.js \
+    $(lib)/crosschain/*.js \
+    $(lib)/crypto/sha3.js \
+    $(lib)/crypto/modular.js $(lib)/crypto/secp256k1.js \
+    $(lib)/did/*.d.js $(lib)/did/section.js $(lib)/did/decryptedSections.js \
+    $(lib)/ethereum/*.d.js $(lib)/ethereum/evm.js \
+    $(lib)/node/error.d.js $(lib)/node/error.js $(lib)/node/nvi.d.js \
+    $(lib)/util/çevir.js \
     build/BEARER_TOKEN
 	mkdir -p $(dir $@)
-	yarn google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
+	bun google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
                              --define "BEARER_TOKEN\$$\$$module\$$edevlet\$$oauth2Worker=$(shell cat build/BEARER_TOKEN)" \
                              --define "CF_ACCOUNT_NAME\$$\$$module\$$edevlet\$$oauth2Worker=$(CF_ACCOUNT_NAME)" \
                              --define "WORKER_NAME\$$\$$module\$$edevlet\$$oauth2Worker=$(WORKER_NAME)" \
@@ -66,25 +66,25 @@ build/oauth2Worker.js: edevlet/oauth2Worker.js edevlet/oauth2Worker.d.js \
                              --entry_point $< \
                              --js $(filter %.js, $^) \
                              --js_output_file $@
-	yarn uglifyjs $@ -m -c toplevel,unsafe,drop_console -o $@
+	bun uglifyjs $@ -m -c toplevel,unsafe,drop_console -o $@
 	sed -i.bak 's/globalThis.OAuth2Worker=/export default/g' $@
 	wc $@
 
 build/nkoWorker.js: edevlet/nkoWorker.js \
     edevlet/nko.d.js edevlet/nko.js edevlet/validation.js \
     edevlet/nkoParser.js edevlet/pdfjs.d.js \
-    lib/cloudflare/types.d.js lib/cloudflare/moduleWorker.d.js \
-    lib/crosschain/*.js \
-    lib/crypto/sha3.js \
-    lib/crypto/modular.js lib/crypto/secp256k1.js \
-    lib/did/*.d.js lib/did/section.js lib/did/decryptedSections.js \
-    lib/ethereum/*.d.js lib/ethereum/evm.js \
-    lib/node/error.d.js lib/node/error.js lib/node/nvi.d.js \
-    lib/util/çevir.js \
+    $(lib)/cloudflare/types.d.js $(lib)/cloudflare/moduleWorker.d.js \
+    $(lib)/crosschain/*.js \
+    $(lib)/crypto/sha3.js \
+    $(lib)/crypto/modular.js $(lib)/crypto/secp256k1.js \
+    $(lib)/did/*.d.js $(lib)/did/section.js $(lib)/did/decryptedSections.js \
+    $(lib)/ethereum/*.d.js $(lib)/ethereum/evm.js \
+    $(lib)/node/error.d.js $(lib)/node/error.js $(lib)/node/nvi.d.js \
+    $(lib)/util/çevir.js \
     build/edevlet/pdfjs.js \
     build/BEARER_TOKEN
 	mkdir -p $(dir $@)
-	yarn google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
+	bun google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
                              --define "BEARER_TOKEN\$$\$$module\$$edevlet\$$nkoWorker=$(shell cat build/BEARER_TOKEN)" \
                              --define "CF_ACCOUNT_NAME\$$\$$module\$$edevlet\$$nkoWorker=$(CF_ACCOUNT_NAME)" \
                              --define "WORKER_NAME\$$\$$module\$$edevlet\$$nkoWorker=$(WORKER_NAME)" \
@@ -97,7 +97,7 @@ build/nkoWorker.js: edevlet/nkoWorker.js \
                              --entry_point $< \
                              --js $(filter-out build/edevlet/pdfjs.js, $(filter %.js, $^)) \
                              --js_output_file $@.tmp
-	yarn uglifyjs $@.tmp -m -c toplevel,unsafe,drop_console -o $@.tmp
+	bun uglifyjs $@.tmp -m -c toplevel,unsafe,drop_console -o $@.tmp
 	sed -i.bak 's/globalThis.NkoWorker=/export default/g' $@.tmp
 	cat build/edevlet/pdfjs.js $@.tmp > $@
 	wc $@
@@ -106,7 +106,7 @@ build/nkoWorker.deployment: build/nkoWorker.js edevlet/nkoWorker.toml \
     signerNode/signerNode.config \
     build/exposureReportWorker.deployment \
     build/humanIDWorker.deployment
-	yarn wrangler deploy $< --name $(WORKER_NAME)-nko-worker \
+	bun wrangler deploy $< --name $(WORKER_NAME)-nko-worker \
         --compatibility-date $(shell date -v -1d +%Y-%m-%d) \
         --config edevlet/nkoWorker.toml
 	touch $@
@@ -115,7 +115,7 @@ build/oauth2Worker.deployment: build/oauth2Worker.js edevlet/nkoWorker.toml \
     signerNode/signerNode.config \
     build/exposureReportWorker.deployment \
     build/humanIDWorker.deployment
-	yarn wrangler deploy $< --name $(WORKER_NAME)-oauth2-worker \
+	bun wrangler deploy $< --name $(WORKER_NAME)-oauth2-worker \
         --compatibility-date $(shell date -v -1d +%Y-%m-%d) \
         --config edevlet/oauth2Worker.toml
 	touch $@
diff --git a/edevlet/nko.js b/edevlet/nko.js
index be11775..6f8b5ef 100644
--- a/edevlet/nko.js
+++ b/edevlet/nko.js
@@ -1,7 +1,7 @@
+import { keccak256Uint32 } from "@kimlikdao/lib/crypto/sha3";
+import { err, ErrorCode } from "@kimlikdao/lib/node/error";
+import { base64ten, uint8ArrayeBase64ten } from "@kimlikdao/lib/util/çevir";
 import { validatePoW } from "./validation";
-import { keccak256Uint32 } from "/lib/crypto/sha3";
-import { err, ErrorCode } from "/lib/node/error";
-import { base64ten, uint8ArrayeBase64ten } from "/lib/util/çevir";
 
 /** @const {!Object<string, string>} */
 const STATIC_HEADERS = {
diff --git a/edevlet/nkoParser.js b/edevlet/nkoParser.js
index ceca48e..a66684e 100644
--- a/edevlet/nkoParser.js
+++ b/edevlet/nkoParser.js
@@ -1,4 +1,4 @@
-import { ErrorCode, reject } from "/lib/node/error";
+import { ErrorCode, reject } from "@kimlikdao/lib/node/error";
 
 /** @const {!Object<string, number>} */
 const MONTHS = {
@@ -355,4 +355,5 @@ const getValidatingTckt = (file, challenge, timeNow) => pdfjs.getDocument(file).
     })
   });
 
-export { getValidatingTckt, ValidatingTckt };
+export { ValidatingTckt, getValidatingTckt };
+
diff --git a/edevlet/nkoWorker.js b/edevlet/nkoWorker.js
index 6b93d80..d12412d 100644
--- a/edevlet/nkoWorker.js
+++ b/edevlet/nkoWorker.js
@@ -1,9 +1,9 @@
+import { sign } from "@kimlikdao/lib/did/decryptedSections";
+import { err, ErrorCode, errorResponse, reject } from "@kimlikdao/lib/node/error";
+import { base64, base64ten } from "@kimlikdao/lib/util/çevir";
 import { generateCommitment } from "./nko";
 import { getValidatingTckt, ValidatingTckt } from "./nkoParser";
 import { validatePoW, validateTimestamp } from "./validation";
-import { sign } from "/lib/did/decryptedSections";
-import { err, ErrorCode, errorResponse, reject } from "/lib/node/error";
-import { base64, base64ten } from "/lib/util/çevir";
 
 /** @const {!Object<string, string>} */
 const HEADERS = {
diff --git a/edevlet/nkoWorker.toml b/edevlet/nkoWorker.toml
index 6e5c8d7..98122b0 100644
--- a/edevlet/nkoWorker.toml
+++ b/edevlet/nkoWorker.toml
@@ -7,3 +7,6 @@ logpush = false
 
 [vars]
 KIMLIKDAO_POW_THRESHOLD = "20000"
+
+[placement]
+mode = "smart"
diff --git a/edevlet/oauth2Worker.js b/edevlet/oauth2Worker.js
index 0e2fca4..34bb4dc 100644
--- a/edevlet/oauth2Worker.js
+++ b/edevlet/oauth2Worker.js
@@ -1,7 +1,7 @@
+import { sign } from "@kimlikdao/lib/did/decryptedSections";
+import { err, ErrorCode } from "@kimlikdao/lib/node/error";
+import { base64, base64ten } from "@kimlikdao/lib/util/çevir";
 import { validateTimestamp } from "./validation";
-import { sign } from "/lib/did/decryptedSections";
-import { err, ErrorCode } from "/lib/node/error";
-import { base64, base64ten } from "/lib/util/çevir";
 
 /**
  * @const {string}
diff --git a/edevlet/oauth2Worker.toml b/edevlet/oauth2Worker.toml
index 6e5c8d7..98122b0 100644
--- a/edevlet/oauth2Worker.toml
+++ b/edevlet/oauth2Worker.toml
@@ -7,3 +7,6 @@ logpush = false
 
 [vars]
 KIMLIKDAO_POW_THRESHOLD = "20000"
+
+[placement]
+mode = "smart"
diff --git a/edevlet/validation.js b/edevlet/validation.js
index d65e533..9d70aa4 100644
--- a/edevlet/validation.js
+++ b/edevlet/validation.js
@@ -1,5 +1,5 @@
-import { keccak256Uint32 } from "/lib/crypto/sha3";
-import { ErrorCode, errWithMessage } from "/lib/node/error";
+import { keccak256Uint32 } from "@kimlikdao/lib/crypto/sha3";
+import { ErrorCode, errWithMessage } from "@kimlikdao/lib/node/error";
 
 /**
  * @param {number} remoteTs
diff --git a/ipfs/ipfs.js b/ipfs/ipfs.js
index 0a4aaec..c2c502d 100644
--- a/ipfs/ipfs.js
+++ b/ipfs/ipfs.js
@@ -1,4 +1,4 @@
-import ipfs from '/lib/node/ipfs';
+import ipfs from '@kimlikdao/lib/node/ipfs';
 
 /**
  * @param {!Request} req
diff --git a/lib b/lib
index 183ebbd..ae8db56 160000
--- a/lib
+++ b/lib
@@ -1 +1 @@
-Subproject commit 183ebbd3ef6236cce83a590869f6df1c99db783c
+Subproject commit ae8db5603b5da1af6f643fc58556698ad71648b7
diff --git a/lightNode/Makefile b/lightNode/Makefile
index 9939a02..63dd3e7 100644
--- a/lightNode/Makefile
+++ b/lightNode/Makefile
@@ -1,11 +1,11 @@
 build/lightNode.js: lightNode/lightNode.js lightNode/lightNode.d.js \
     ipfs/ipfs.d.js ipfs/ipfs.js \
-    lib/cloudflare/types.d.js lib/cloudflare/moduleWorker.d.js \
-    lib/node/error.d.js lib/node/error.js \
-    lib/node/ipfs.d.js lib/node/ipfs.js \
-    lib/util/çevir.js
+    $(lib)/cloudflare/types.d.js $(lib)/cloudflare/moduleWorker.d.js \
+    $(lib)/node/error.d.js $(lib)/node/error.js \
+    $(lib)/node/ipfs.d.js $(lib)/node/ipfs.js \
+    $(lib)/util/çevir.js $(lib)/util/base58.js
 	mkdir -p $(dir $@)
-	yarn google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
+	bun google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
                              --jscomp_error=unusedLocalVariables \
                              --jscomp_error=strictCheckTypes \
                              --jscomp_error=checkTypes \
@@ -18,12 +18,12 @@ build/lightNode.js: lightNode/lightNode.js lightNode/lightNode.d.js \
                              --entry_point $< \
                              --js $^ \
                              --js_output_file $@
-	yarn uglifyjs $@ -m -c toplevel,unsafe -o $@
+	bun uglifyjs $@ -m -c toplevel,unsafe -o $@
 	sed -i.bak 's/globalThis.LightNodeWorker=/export default/g' $@
 	wc $@
 
 build/lightNode.deployment: build/lightNode.js
-	yarn wrangler deploy $< \
+	bun wrangler deploy $< \
         --compatibility-date $(shell date -v -1d +%Y-%m-%d) \
-        --config build/lightNode.toml
-	touch $@
\ No newline at end of file
+        --config lightNode/lightNode.toml
+	touch $@
diff --git a/lightNode/lightNode.toml b/lightNode/lightNode.toml
index af47b3a..c76ba09 100644
--- a/lightNode/lightNode.toml
+++ b/lightNode/lightNode.toml
@@ -2,7 +2,6 @@
 # and the route.
 name = "kimlikdao-ipfs"
 main = "../build/lightNode.js"
-compatibility_date = "2023-01-01"
 workers_dev = false
 no_bundle = true
 minify = false
diff --git a/mina/Makefile b/mina/Makefile
new file mode 100644
index 0000000..1ac7cf3
--- /dev/null
+++ b/mina/Makefile
@@ -0,0 +1,36 @@
+build/mina/mina.js: mina/mina.js mina/mina.d.js \
+    mina/MerkleTree.js \
+    $(lib)/cloudflare/moduleWorker.d.js \
+    $(lib)/cloudflare/durableObject.d.js \
+    $(lib)/cloudflare/types.d.js \
+    $(lib)/crypto/poseidon.js \
+    $(lib)/crypto/modular.js \
+    $(lib)/mina/merkleTree.d.js $(lib)/mina/mina.d.js \
+    $(lib)/util/hex.js
+	mkdir -p $(dir $@)
+	mkdir -p build/input/mina && cp -rf mina/* build/input/mina/
+	mkdir -p build/input/node_modules/@kimlikdao
+	ln -sfn ../../../../$(lib) build/input/node_modules/@kimlikdao/lib
+	sed -i.bak '/cloudflare:workers/d' build/input/mina/MerkleTree.js
+	echo 'globalThis["MinaWorker"] = MinaWorker;\nglobalThis["MerkleTree"] = MerkleTree;' >> build/input/mina/mina.js
+	cd build/input; bun google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
+	                        --jscomp_error=checkTypes \
+	                        --jscomp_error=strictCheckTypes \
+	                        --jscomp_error=unusedLocalVariables \
+	                        --jscomp_error=reportUnknownTypes \
+	                        --emit_use_strict \
+	                        --language_in ECMASCRIPT_NEXT \
+	                        --module_resolution NODE \
+	                        --assume_function_wrapper \
+	                        --dependency_mode PRUNE \
+	                        --entry_point mina/mina.js \
+	                        --js $^ \
+	                        --js_output_file ../../$@
+	rm -rf build/input/mina
+	bun uglifyjs $@ -m -c toplevel,unsafe,drop_console -o $@
+	bun $(lib)/birimler/bigintCompressor.js $@
+	wc $@
+
+build/mina.deployment: build/mina/mina.js mina/prod.toml
+	bun wrangler deploy $< --compatibility-date $(shell date -v -1d +%Y-%m-%d) \
+	    --config mina/prod.toml
diff --git a/mina/MerkleTree.js b/mina/MerkleTree.js
new file mode 100644
index 0000000..299d0e7
--- /dev/null
+++ b/mina/MerkleTree.js
@@ -0,0 +1,124 @@
+import { poseidon } from "@kimlikdao/lib/crypto/poseidon";
+import { DurableObject } from "cloudflare:workers";
+
+/** @typedef {string} */
+const BinaryKey = {};
+
+/**
+ * In InvKey, the last bit is inverted. This achieves some optimizations
+ * with how batch data loads are handled with DurableObjects.
+ *
+ * @typedef {string}
+ */
+const InvKey = {};
+
+/**
+ * @param {BinaryKey} key
+ * @return {InvKey}
+ */
+const toInvKey = (key) => key
+ ? key.slice(0, -1) + +(key.charCodeAt(key.length - 1) == 48)
+ : "r";
+
+/**
+ * @implements {cloudflare.DurableObject}
+ */
+class MerkleTree extends DurableObject {
+  /**
+   * @override
+   *
+   * @param {!cloudflare.DurableObjectState} state
+   * @param {!cloudflare.Environment} env
+   */
+  constructor(state, env) {
+    super(state, env);
+    /** @const {!cloudflare.DurableObjectStorage} */
+    this.storage = state.storage;
+    /** @type {number} */
+    this.height = 0;
+    /** @type {!Array<!bigint>} */
+    this.zeros = [];
+
+    state.blockConcurrencyWhile(() => state.storage.get("height")
+      .then((/** number */ height) => this._setHeight(height || 0)));
+  }
+
+  /**
+   * @private
+   *
+   * @param {number} height
+   */
+  _setHeight(height) {
+    if (this.height) throw `Initialized ${this.height}`;
+    /** @const {!Array<!bigint>} */
+    const zeros = Array(height + 1);
+    /** @const {!Array<!bigint>} */
+    zeros[height] = 0n;
+    for (let i = height; i > 0; --i)
+      zeros[i - 1] = poseidon([zeros[i], zeros[i]]);
+    this.height = height;
+    this.zeros = zeros;
+  }
+
+  /**
+   * @param {number} height
+   * @return {!Promise<void>}
+   */
+  setHeight(height) {
+    this._setHeight(height);
+    return this.storage.put("height", height);
+  }
+
+  /**
+   * @param {BinaryKey} key
+   * @return {!Promise<!bigint>}
+   */
+  getNode(key) {
+    return this.storage.get(toInvKey(key)).then((/** !bigint */ val) => val || this.zeros[key.length]);
+  }
+
+  /**
+   * @param {BinaryKey} key
+   * @param {!bigint} val
+   * @return {!Promise<!bigint>} the root after insertion
+   */
+  setLeaf(key, val) {
+    return this.getWitness(key).then((witness) => {
+      /** @const {!Object<InvKey, !bigint>} */
+      const entries = {};
+      for (const w of witness) {
+        key = key.slice(0, -1);
+        entries[key + (+w.isLeft)] = val;
+        val = poseidon(w.isLeft ? [val, w.sibling] : [w.sibling, val]);
+      }
+      entries["r"] = val;
+      return this.storage.put(entries).then(() => val);
+    });
+  }
+
+  /**
+   * @param {BinaryKey} key
+   * @return {!Promise<!Array<mina.Witness>>}
+   */
+  getWitness(key) {
+    const h = key.length;
+    /** @const {!Array<string>} */
+    const keys = Array(h);
+    for (let i = 0; i < h; ++i)
+      keys[i] = key.slice(0, i + 1);
+    return this.storage.get(keys).then((/** !Map<string, !bigint> */ map) => {
+      /** @const {!Array<mina.Witness>} */
+      const witness = Array(h);
+      /** @type {number} */
+      let i = 0;
+      for (const k of keys)
+        witness[h - ++i] = {
+          isLeft: k.charCodeAt(i - 1) == 48,
+          sibling: map.get(k) || this.zeros[i]
+        }
+      return witness;
+    });
+  }
+}
+
+export { MerkleTree };
diff --git a/mina/mina.d.js b/mina/mina.d.js
new file mode 100644
index 0000000..1cd6f71
--- /dev/null
+++ b/mina/mina.d.js
@@ -0,0 +1,19 @@
+/** @externs */
+
+/**
+ * @constructor
+ * @implements {cloudflare.DurableObject}
+ *
+ * @param {!cloudflare.DurableObjectState} state
+ * @param {!cloudflare.Environment} env
+ */
+const DurableObject = function (state, env) { }
+
+/**
+ * @interface
+ * @extends {cloudflare.Environment}
+ */
+const MinaEnv = function () { }
+
+/** @const {!cloudflare.DurableObjectBinding} */
+MinaEnv.prototype.MerkleTree;
diff --git a/mina/mina.js b/mina/mina.js
new file mode 100644
index 0000000..72cd497
--- /dev/null
+++ b/mina/mina.js
@@ -0,0 +1,34 @@
+import hex from "@kimlikdao/lib/util/hex";
+import { MerkleTree } from "./MerkleTree";
+
+/** @define {string} */
+const NODE_URL = "mina.kimlikdao.org";
+
+/**
+ * @implements {cloudflare.ModuleWorker}
+ */
+const MinaWorker = {
+  /**
+   * @override
+   * @param {!Request} req
+   * @param {!MinaEnv} env
+   */
+  async fetch(req, env) {
+    /** @const {string} */
+    const pathname = req.url.slice(NODE_URL.length + 8);
+
+    if (pathname.startsWith("/witness")) {
+      const address = pathname.slice("/witness/".length, "/witness/".length + 55);
+      const index = hex.toBin(pathname.slice("/witness/".length + 56));
+
+      /** @const {!MerkleTree} */
+      const merkleTree = /** @type {!MerkleTree} */(
+        env.MerkleTree.get(env.MerkleTree.idFromName(address)));
+
+      return merkleTree.getWitness(index).then(Response.json);
+    }
+  }
+};
+
+export default MinaWorker;
+export { MerkleTree };
diff --git a/mina/prod.toml b/mina/prod.toml
new file mode 100644
index 0000000..fe607c9
--- /dev/null
+++ b/mina/prod.toml
@@ -0,0 +1,22 @@
+account_id = "8f0c2f2271ff857947d9a5b2c38595a0"
+
+main = "./mina.js"
+name = "kimlikdao-node-mina"
+route = { pattern = "mina.kimlikdao.org", custom_domain = true }
+
+workers_dev = false
+# no_bundle = true
+minify = false
+send_metrics = false
+node_compat = false
+logpush = false
+
+rules = [{ type = "Text", globs = [], fallthrough = false }]
+
+[[durable_objects.bindings]]
+name = "MerkleTree"
+class_name = "MerkleTree"
+
+[[migrations]]
+tag = "v1"
+new_classes = ["MerkleTree"]
diff --git a/package.json b/package.json
index 0b7ce8c..230abbb 100644
--- a/package.json
+++ b/package.json
@@ -3,9 +3,12 @@
   "version": "0.0.0",
   "type": "module",
   "devDependencies": {
-    "google-closure-compiler": "^20230802.0.0",
+    "@cloudflare/workers-types": "^4.20240512.0",
+    "@kimlikdao/lib": "github:KimlikDAO/kimlikdao-js",
+    "google-closure-compiler": "^20240317.0.0",
     "uglify-js": "^3.17.4",
-    "wrangler": "^3.22.0"
+    "vitest": "^1.6.0",
+    "wrangler": "^3.57.1"
   },
   "private": true
 }
diff --git a/signerNode/Makefile b/signerNode/Makefile
index 79da520..95962be 100644
--- a/signerNode/Makefile
+++ b/signerNode/Makefile
@@ -2,24 +2,25 @@ build/signerNode.js: signerNode/signerNode.js signerNode/signerNode.d.js \
     edevlet/nko.d.js edevlet/nko.js edevlet/validation.js \
     ipfs/ipfs.d.js ipfs/ipfs.js \
     meetgreet/yo.d.js meetgreet/yo.js \
-    lib/cloudflare/types.d.js lib/cloudflare/moduleWorker.d.js \
-    lib/crypto/sha3.js \
-    lib/node/error.d.js lib/node/error.js \
-    lib/node/ipfs.d.js lib/node/ipfs.js \
-    lib/util/çevir.js
+    $(lib)/cloudflare/types.d.js $(lib)/cloudflare/moduleWorker.d.js \
+    $(lib)/crypto/sha3.js \
+    $(lib)/node/error.d.js $(lib)/node/error.js \
+    $(lib)/node/ipfs.d.js $(lib)/node/ipfs.js \
+    $(lib)/util/çevir.js $(lib)/util/base58.js
 	mkdir -p $(dir $@)
-	yarn google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
-                             --jscomp_error=unusedLocalVariables \
-                             --jscomp_error=strictCheckTypes \
-                             --language_in ECMASCRIPT_NEXT \
-                             --module_resolution NODE \
-                             --dependency_mode PRUNE \
-                             --assume_function_wrapper \
-                             --emit_use_strict \
-                             --entry_point $< \
-                             --js $^ \
-                             --js_output_file $@
-	yarn uglifyjs $@ -m -c toplevel,unsafe,drop_console -o $@
+	bun google-closure-compiler -W VERBOSE -O ADVANCED --charset UTF-8 \
+                            --define "NODE_URL\$$\$$module\$$signerNode\$$signerNode=$(NODE_URL)" \
+                            --jscomp_error=unusedLocalVariables \
+                            --jscomp_error=strictCheckTypes \
+                            --language_in ECMASCRIPT_NEXT \
+                            --module_resolution NODE \
+                            --dependency_mode PRUNE \
+                            --assume_function_wrapper \
+                            --emit_use_strict \
+                            --entry_point $< \
+                            --js $^ \
+                            --js_output_file $@
+	bun uglifyjs $@ -m -c toplevel,unsafe,drop_console -o $@
 	sed -i.bak 's/globalThis.SignerNodeWorker=/export default/g' $@
 	wc $@
 
@@ -34,7 +35,7 @@ build/signerNode.toml: signerNode/signerNode.toml signerNode/signerNode.config
 build/signerNode.deployment: build/signerNode.js build/signerNode.toml \
     build/nkoWorker.deployment \
     build/oauth2Worker.deployment
-	yarn wrangler deploy $< --name $(WORKER_NAME) \
+	bun wrangler deploy $< --name $(WORKER_NAME) \
         --compatibility-date $(shell date -v -1d +%Y-%m-%d) \
         --config build/signerNode.toml
 	touch $@
diff --git a/signerNode/signerNode.config b/signerNode/signerNode.config
index ced33c4..943ba26 100644
--- a/signerNode/signerNode.config
+++ b/signerNode/signerNode.config
@@ -1,4 +1,4 @@
-NODE_URL = "node.kimlikdao.org"
+NODE_URL = "node.dobbyinu.org"
 CF_WORKER_NAME = "kimlikdao-node"
 CF_ACCOUNT_NAME = "kimlikdao"
 CF_KV_NAMESPACE_ID = "52b51a1db0ce4508a144633d407dab93"
diff --git a/signerNode/signerNode.js b/signerNode/signerNode.js
index 62c3308..ade2cfc 100644
--- a/signerNode/signerNode.js
+++ b/signerNode/signerNode.js
@@ -7,14 +7,16 @@ import { commit } from "/edevlet/nko";
 import ipfs from "/ipfs/ipfs";
 import { yo } from "/meetgreet/yo";
 
+/** @define {string} */
+const NODE_URL = "node.kimlikdao.org";
+
 /**
  * @param {string} url
  * @return {string} the pathname extracted from the url.
  */
 const pathname = (url) => {
   const j = url.indexOf("?");
-  url = j == -1 ? url.slice(8) : url.slice(8, j);
-  url = url.slice(url.indexOf("/"));
+  url = j == -1 ? url.slice(8 + NODE_URL.length) : url.slice(8 + NODE_URL.length, j);
   return url.startsWith("/ipfs") ? "/ipfs" : url;
 }