diff --git a/.gitignore b/.gitignore
index e0c3a931..bdba7707 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 /output
 /scratch
 /.vscode
+/.temp
 
 result
 
@@ -18,3 +19,6 @@ result
 # Keep it secret, keep it safe.
 .env
 .envrc
+
+.claude
+CLAUDE.md
diff --git a/app/src/App/Server.purs b/app/src/App/Server.purs
index 659b4ad8..7e42001f 100644
--- a/app/src/App/Server.purs
+++ b/app/src/App/Server.purs
@@ -152,6 +152,7 @@ type ServerEnvVars =
 
 readServerEnvVars :: Aff ServerEnvVars
 readServerEnvVars = do
+  Env.loadEnvFile ".temp/local-server/.env.local"
   Env.loadEnvFile ".env"
   token <- Env.lookupRequired Env.pacchettibottiToken
   publicKey <- Env.lookupRequired Env.pacchettibottiED25519Pub
diff --git a/run-local-server.sh b/run-local-server.sh
new file mode 100755
index 00000000..183fd6c3
--- /dev/null
+++ b/run-local-server.sh
@@ -0,0 +1,183 @@
+#!/usr/bin/env bash
+
+# Script to run the PureScript Registry server locally without VM.
+#
+# The script starts a bunch of external service mocks using WireMock, creates a
+# Sqlite DB (if doesn't exist yet) and sets up overriding .env file pointing to
+# those mock services and the DB. All of that is kept under `.temp/local-server/`.
+# To reset the environment, nuke that directory.
+
+set -euo pipefail
+
+# Configuration
+MOCK_GITHUB_PORT=9001
+MOCK_BUCKET_PORT=9002
+MOCK_S3_PORT=9003
+MOCK_PURSUIT_PORT=9004
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PIDS=()
+CACHE_DIR="$SCRIPT_DIR/.temp/local-server"
+mkdir -p "$CACHE_DIR"
+
+# Cleanup function
+cleanup() {
+  for pid in "${PIDS[@]}"; do
+    if kill -0 "$pid" 2>/dev/null; then
+      kill "$pid" 2>/dev/null || true
+    fi
+  done
+
+  echo "Killed all mock services."
+}
+
+# Set up cleanup trap
+trap cleanup EXIT INT TERM
+
+# Function to start a wiremock service
+start_wiremock() {
+  local service_name=$1
+  local port=$2
+  local mappings=$3
+  local service_dir="$CACHE_DIR/wiremock-$service_name"
+  mkdir -p "$service_dir/mappings" "$service_dir/__files"
+  echo > "$service_dir/mappings/mappings.json" "$mappings"
+  cp "$SCRIPT_DIR/app/fixtures/registry-storage"/*.tar.gz "$service_dir/__files/" 2>/dev/null || true
+
+  # Start wiremock
+  nix run nixpkgs#wiremock -- \
+    --port "$port" \
+    --root-dir "$service_dir" \
+    --disable-banner \
+    --verbose &
+
+  local pid=$!
+  PIDS+=("$pid")
+}
+
+mkdir -p "$CACHE_DIR/repo-fixtures/purescript"
+cp -r "$SCRIPT_DIR/app/fixtures/github-packages"/* "$CACHE_DIR/repo-fixtures/purescript/" 2>/dev/null || true
+cp -r "$SCRIPT_DIR/app/fixtures/registry-index" "$CACHE_DIR/repo-fixtures/purescript/" 2>/dev/null || true
+cp -r "$SCRIPT_DIR/app/fixtures/package-sets" "$CACHE_DIR/repo-fixtures/purescript/" 2>/dev/null || true
+
+start_wiremock "github-api" $MOCK_GITHUB_PORT '
+{
+  "mappings": [
+    {
+      "request": {
+        "method": "GET",
+        "url": "/repos/purescript/purescript-effect/contents/bower.json?ref=v4.0.0"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "Content-Type": "application/json"
+        },
+        "jsonBody": {
+          "type": "file",
+          "encoding": "base64",
+          "content": "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"
+        }
+      }
+    },
+    {
+      "request": {
+        "method": "GET",
+        "url": "/repos/purescript/package-sets/tags"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "Content-Type": "application/json"
+        },
+        "jsonBody": {
+          "name": "psc-0.15.10-20230105",
+          "commit": {
+            "sha": "090897c992b2b310b1456506308db789672adac1",
+            "url": "https://api.github.com/repos/purescript/package-sets/commits/090897c992b2b310b1456506308db789672adac1"
+          }
+        }
+      }
+    }
+  ]
+}'
+
+start_wiremock "s3-api" $MOCK_S3_PORT '
+{
+  "mappings": [
+    {
+      "request": {
+        "method": "GET",
+        "url": "/prelude/6.0.1.tar.gz"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "Content-Type": "application/octet-stream"
+        },
+        "bodyFileName": "prelude-6.0.1.tar.gz"
+      }
+    }
+  ]
+}'
+
+start_wiremock "bucket-api" $MOCK_BUCKET_PORT '
+{
+  "mappings": [
+    {
+      "request": {
+        "method": "GET",
+        "urlPattern": "/.*"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "Content-Type": "application/xml"
+        },
+        "body": "<?xml version=\"1.0\" encoding=\"UTF-8\"?><ListBucketResult></ListBucketResult>"
+      }
+    }
+  ]
+}'
+
+start_wiremock "pursuit-api" $MOCK_PURSUIT_PORT '
+{
+  "mappings": [
+    {
+      "request": {
+        "method": "POST",
+        "urlPattern": "/packages.*"
+      },
+      "response": {
+        "status": 200,
+        "headers": {
+          "Content-Type": "application/json"
+        },
+        "jsonBody": {
+          "success": true
+        }
+      }
+    }
+  ]
+}'
+
+if [ ! -f "$SCRIPT_DIR/.env" ]; then
+  cp "$SCRIPT_DIR/.env.example" "$SCRIPT_DIR/.env"
+fi
+
+if [ ! -f "$CACHE_DIR/registry.sqlite3" ]; then
+  sqlite3 "$CACHE_DIR/registry.sqlite3" < "$SCRIPT_DIR/db/schema.sql"
+fi
+
+  cat > "$CACHE_DIR/.env.local" <<-END
+DATABASE_URL="sqlite:$CACHE_DIR/registry.sqlite3"
+DHALL_TYPES="$SCRIPT_DIR/types"
+GITHUB_API_URL=http://localhost:$MOCK_GITHUB_PORT
+S3_API_URL=http://localhost:$MOCK_S3_PORT
+S3_BUCKET_URL=http://localhost:$MOCK_BUCKET_PORT
+PURSUIT_API_URL=http://localhost:$MOCK_PURSUIT_PORT
+END
+
+# Using a specific version of Spago until the new lockfile structure is
+# supported by the PureScript Nix overlay.
+npx --yes spago@0.93.19 run -p registry-app