diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f747a9a47..4ba8a897b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -52,6 +52,9 @@ jobs:
       - name: Verify NX_BASE and NX_HEAD are set
         run: echo "BASE=$NX_BASE HEAD=$NX_HEAD"
 
+      - name: Pre-start Supabase for affected packages
+        run: ./scripts/ci-prestart-supabase.sh core client
+
       - name: Quality gate (lint + typecheck + test)
         run: pnpm nx affected -t lint typecheck test --parallel --configuration=production --base="$NX_BASE" --head="$NX_HEAD"
 
@@ -96,6 +99,9 @@ jobs:
       - name: Verify NX_BASE and NX_HEAD are set
         run: echo "BASE=$NX_BASE HEAD=$NX_HEAD"
 
+      - name: Pre-start Supabase for affected packages
+        run: ./scripts/ci-prestart-supabase.sh edge-worker
+
       - name: Check if edge-worker e2e tests are affected
         id: check-affected
         run: |
diff --git a/pkgs/client/project.json b/pkgs/client/project.json
index 5457f929c..16df42cb7 100644
--- a/pkgs/client/project.json
+++ b/pkgs/client/project.json
@@ -5,6 +5,9 @@
   "projectType": "library",
   "tags": [],
   "targets": {
+    "supabase:ci-marker": {
+      "executor": "nx:noop"
+    },
     "build": {
       "executor": "nx:noop",
       "inputs": ["production", "^production"],
@@ -202,7 +205,7 @@
       "executor": "nx:run-commands",
       "cache": true,
       "inputs": ["production", "^production"],
-      "dependsOn": ["^build"],
+      "dependsOn": ["^build", "lint"],
       "options": {
         "cwd": "{projectRoot}",
         "command": "pnpm vitest --typecheck.only --run --config vitest.typecheck.config.ts"
diff --git a/pkgs/client/scripts/prepare-supabase.sh b/pkgs/client/scripts/prepare-supabase.sh
new file mode 100755
index 000000000..51b928754
--- /dev/null
+++ b/pkgs/client/scripts/prepare-supabase.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+# Prepares Supabase for client package by copying migrations and seed from core.
+# Called automatically by scripts/supabase-start.sh before starting Supabase.
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PKG_DIR="$(dirname "$SCRIPT_DIR")"
+
+echo "Preparing Supabase for client..."
+mkdir -p "$PKG_DIR/supabase/migrations/"
+rm -f "$PKG_DIR/supabase/migrations/"*.sql
+cp "$PKG_DIR/../core/supabase/migrations/"*.sql "$PKG_DIR/supabase/migrations/"
+cp "$PKG_DIR/../core/supabase/seed.sql" "$PKG_DIR/supabase/"
+echo "Migrations and seed copied from core"
diff --git a/pkgs/core/project.json b/pkgs/core/project.json
index 8366c9f65..1979b12e2 100644
--- a/pkgs/core/project.json
+++ b/pkgs/core/project.json
@@ -19,6 +19,9 @@
     ]
   },
   "targets": {
+    "supabase:ci-marker": {
+      "executor": "nx:noop"
+    },
     "dump-realtime-schema": {
       "executor": "nx:run-commands",
       "local": true,
@@ -275,7 +278,7 @@
       "executor": "nx:run-commands",
       "cache": true,
       "inputs": ["production", "^production"],
-      "dependsOn": ["^build"],
+      "dependsOn": ["^build", "lint"],
       "options": {
         "cwd": "{projectRoot}",
         "command": "pnpm vitest --typecheck.only --run --config vitest.typecheck.config.ts"
diff --git a/pkgs/dsl/project.json b/pkgs/dsl/project.json
index 80c18e4a1..742aff06f 100644
--- a/pkgs/dsl/project.json
+++ b/pkgs/dsl/project.json
@@ -40,7 +40,7 @@
       "executor": "nx:run-commands",
       "cache": true,
       "inputs": ["production"],
-      "dependsOn": [],
+      "dependsOn": ["lint"],
       "options": {
         "cwd": "{projectRoot}",
         "command": "pnpm vitest --typecheck.only --run --config vitest.typecheck.config.ts"
diff --git a/pkgs/edge-worker/project.json b/pkgs/edge-worker/project.json
index ab8970df9..41ce69068 100644
--- a/pkgs/edge-worker/project.json
+++ b/pkgs/edge-worker/project.json
@@ -4,6 +4,9 @@
   "sourceRoot": "pkgs/edge-worker",
   "projectType": "library",
   "targets": {
+    "supabase:ci-marker": {
+      "executor": "nx:noop"
+    },
     "build": {
       "executor": "nx:noop",
       "dependsOn": ["^build"]
diff --git a/pkgs/edge-worker/scripts/prepare-supabase.sh b/pkgs/edge-worker/scripts/prepare-supabase.sh
new file mode 100755
index 000000000..d30bf805c
--- /dev/null
+++ b/pkgs/edge-worker/scripts/prepare-supabase.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+# Prepares Supabase for edge-worker package by copying migrations and seed from core.
+# Called automatically by scripts/supabase-start.sh before starting Supabase.
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PKG_DIR="$(dirname "$SCRIPT_DIR")"
+
+echo "Preparing Supabase for edge-worker..."
+mkdir -p "$PKG_DIR/supabase/migrations/"
+rm -f "$PKG_DIR/supabase/migrations/"*.sql
+cp "$PKG_DIR/../core/supabase/migrations/"*.sql "$PKG_DIR/supabase/migrations/"
+cp "$PKG_DIR/../core/supabase/seed.sql" "$PKG_DIR/supabase/"
+echo "Migrations and seed copied from core"
diff --git a/scripts/ci-prestart-supabase.sh b/scripts/ci-prestart-supabase.sh
new file mode 100755
index 000000000..c6fa042c2
--- /dev/null
+++ b/scripts/ci-prestart-supabase.sh
@@ -0,0 +1,112 @@
+#!/bin/bash
+# scripts/ci-prestart-supabase.sh
+#
+# Pre-starts Supabase for affected packages in CI.
+# First instance pulls Docker images, rest start in parallel.
+#
+# Usage: ./scripts/ci-prestart-supabase.sh <package1> [package2] ...
+#   Example: ./scripts/ci-prestart-supabase.sh core client
+#   Example: ./scripts/ci-prestart-supabase.sh edge-worker
+#
+# Env vars:
+#   NX_BASE - Base ref for affected check (default: origin/main)
+#   NX_HEAD - Head ref for affected check (default: HEAD)
+#
+# Optimization: Supabase start has two slow phases:
+#   1. Docker image pull (~slow first time, then cached)
+#   2. Container startup (~28s even with cached images)
+# This script starts the first instance (pulls images), then starts
+# the rest in parallel to save ~1 minute on CI runs.
+
+set -euo pipefail
+
+if [ $# -eq 0 ]; then
+  echo "Usage: $0 <package1> [package2] ..."
+  echo "Example: $0 core client"
+  exit 1
+fi
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+BASE=${NX_BASE:-origin/main}
+HEAD=${NX_HEAD:-HEAD}
+
+# Map packages to their directories
+declare -A PKG_DIRS=(
+  ["core"]="pkgs/core"
+  ["client"]="pkgs/client"
+  ["edge-worker"]="pkgs/edge-worker"
+  ["cli"]="pkgs/cli"
+)
+
+# Get all affected projects with supabase:ci-marker target
+AFFECTED=$(pnpm nx show projects --affected -t supabase:ci-marker --base="$BASE" --head="$HEAD" 2>/dev/null || echo "")
+
+# Filter to only packages specified as arguments
+DIRS=()
+for pkg in "$@"; do
+  if [ -z "${PKG_DIRS[$pkg]:-}" ]; then
+    echo "Warning: Unknown package '$pkg', skipping"
+    continue
+  fi
+  if echo "$AFFECTED" | grep -q "^${pkg}$"; then
+    DIRS+=("${PKG_DIRS[$pkg]}")
+    echo "Package '$pkg' is affected"
+  else
+    echo "Package '$pkg' is not affected, skipping"
+  fi
+done
+
+if [ ${#DIRS[@]} -eq 0 ]; then
+  echo "No affected packages need Supabase"
+  exit 0
+fi
+
+echo "Starting Supabase for: ${DIRS[*]}"
+
+LOGDIR=$(mktemp -d)
+trap "rm -rf $LOGDIR" EXIT
+
+# First one pulls Docker images (must complete before others)
+echo "::group::Starting ${DIRS[0]} (pulling Docker images)"
+if ! "$SCRIPT_DIR/supabase-start-locked.sh" "${DIRS[0]}" 2>&1 | tee "$LOGDIR/first.log"; then
+  echo "::endgroup::"
+  echo "::error::Failed to start ${DIRS[0]}"
+  exit 1
+fi
+echo "::endgroup::"
+
+# Rest in parallel (images cached, ~28s each but concurrent)
+if [ ${#DIRS[@]} -gt 1 ]; then
+  REMAINING=$((${#DIRS[@]} - 1))
+  echo "Starting $REMAINING more instance(s) in parallel..."
+
+  PIDS=()
+  for dir in "${DIRS[@]:1}"; do
+    name=$(basename "$dir")
+    "$SCRIPT_DIR/supabase-start-locked.sh" "$dir" > "$LOGDIR/$name.log" 2>&1 &
+    PIDS+=("$!:$dir:$name")
+  done
+
+  FAILED=0
+  for entry in "${PIDS[@]}"; do
+    pid=${entry%%:*}
+    rest=${entry#*:}
+    dir=${rest%%:*}
+    name=${rest#*:}
+    if ! wait "$pid"; then
+      echo "::error::Failed to start $dir"
+      echo "::group::$name log"
+      cat "$LOGDIR/$name.log"
+      echo "::endgroup::"
+      FAILED=1
+    else
+      echo ":: $dir started"
+    fi
+  done
+
+  if [ $FAILED -eq 1 ]; then
+    exit 1
+  fi
+fi
+
+echo "All Supabase instances started"
diff --git a/scripts/supabase-start.sh b/scripts/supabase-start.sh
index 3e67d5464..59d8cee0d 100755
--- a/scripts/supabase-start.sh
+++ b/scripts/supabase-start.sh
@@ -15,7 +15,10 @@ set -e
 # Behavior:
 #   1. Checks if Supabase is already running (fast path)
 #   2. If running: exits immediately
-#   3. If not running: cleans up stale containers and starts fresh
+#   3. If not running:
+#      a. Runs <project>/scripts/prepare-supabase.sh if it exists (e.g., copy migrations)
+#      b. Cleans up stale containers
+#      c. Starts Supabase fresh
 #
 # Exit codes:
 #   0 - Success (Supabase is running)
@@ -58,6 +61,13 @@ fi
 # Supabase is not running - need to start it
 echo -e "${YELLOW}Supabase is not running. Starting...${NC}"
 
+# Run package-specific preparation if script exists
+PREPARE_SCRIPT="$PROJECT_DIR/scripts/prepare-supabase.sh"
+if [ -x "$PREPARE_SCRIPT" ]; then
+  echo -e "${YELLOW}Running prepare-supabase.sh...${NC}"
+  "$PREPARE_SCRIPT"
+fi
+
 # Clean up any stale containers first
 # This prevents errors from previous incomplete shutdowns
 echo -e "${YELLOW}Cleaning up any stale containers...${NC}"