diff --git a/.env.d.examples/00_crossref-local.env b/.env.d.examples/00_crossref-local.env
index 00eaaeeaa..e71b2e9b5 100644
--- a/.env.d.examples/00_crossref-local.env
+++ b/.env.d.examples/00_crossref-local.env
@@ -11,5 +11,5 @@ CROSSREF_LOCAL_API_URL=http://localhost:31291
 CROSSREF_LOCAL_HOST=0.0.0.0
 CROSSREF_LOCAL_PORT=31291
 
-# Path to SQLite database (for db mode)
+# Path to the local database file (for db mode)
 # CROSSREF_LOCAL_DB=/path/to/crossref.db
diff --git a/.gitignore b/.gitignore
index 20d3a496a..83469a3de 100755
--- a/.gitignore
+++ b/.gitignore
@@ -144,8 +144,6 @@ cover/
 # Django stuff:
 # *.log
 local_settings.py
-db.sqlite3
-db.sqlite3-journal
 
 # Flask stuff:
 instance/
@@ -389,8 +387,6 @@ cover/
 # Django stuff:
 *.log
 local_settings.py
-db.sqlite3
-db.sqlite3-journal
 
 # Flask stuff:
 instance/
@@ -928,6 +924,7 @@ tests/results/
 mgmt
 .jupyter_ystore.db
 **/scitex/clew.db
+.scitex/clew/
 docs/visualization/FROM_USER.md
 /.claude-worktree-symlinks
 # Claude worktree symlink
diff --git a/.scitex/clew/runtime/db.sqlite b/.scitex/clew/runtime/db.sqlite
deleted file mode 100644
index e51371676..000000000
Binary files a/.scitex/clew/runtime/db.sqlite and /dev/null differ
diff --git a/README.md b/README.md
index bb8a13e69..ab9d22167 100755
--- a/README.md
+++ b/README.md
@@ -526,22 +526,29 @@ Extends stdlib `logging` with SUCCESS/FAIL levels, a 30+ class exception tree (`
 </details>
 
 <details>
-<summary><strong><code>scitex.db</code> -- SQLite3 / PostgreSQL with ndarray BLOB Storage</strong></summary>
+<summary><strong><code>scitex.db</code> -- PostgreSQL with ndarray BLOB Storage</strong></summary>
 
 ```python
+import os
 import scitex as stx, numpy as np
 
-db = stx.db.SQLite3("experiments.db")
-with db:                                             # context-manager transaction
-    db.execute("CREATE TABLE IF NOT EXISTS runs (id TEXT, acc REAL)")
-    db.save_array("weights_epoch_87", np.random.rand(1024, 1024))   # compressed BLOB
-
-df = db.to_df("runs")                                # pandas round-trip
-w = db.load_array("weights_epoch_87")                # typed ndarray back
-db.check_health()                                    # integrity + schema drift
-stx.db.delete_duplicates(conn, "runs", columns=["id"])
+db = stx.db.PostgreSQL(
+    dbname="experiments",
+    user="researcher",
+    password=os.environ["PGPASSWORD"],
+    host="localhost",
+)
+with db:                                             # closes the connection on exit
+    db.execute(
+        "CREATE TABLE IF NOT EXISTS runs (id SERIAL PRIMARY KEY, acc REAL, weights BYTEA)"
+    )
+    db.execute("INSERT INTO runs (acc) VALUES (0.87)")
+    db.save_array("runs", np.random.rand(1024, 1024), column="weights", ids=1)  # BLOB
+
+    df = db.get_rows("runs")                         # pandas round-trip
+    w = db.load_array("runs", "weights", ids=1)      # typed ndarray back
 ```
-SQLite / PostgreSQL clients with first-class compressed-ndarray BLOBs, dataframe round-trips, health checks, and duplicate removal. Drop-in replacement for hand-rolling `pickle → BLOB` storage or SQLAlchemy Core when you don't need an ORM.
+A PostgreSQL client with first-class compressed-ndarray BLOBs and dataframe round-trips. Drop-in replacement for hand-rolling `pickle → BLOB` storage or SQLAlchemy Core when you don't need an ORM.
 </details>
 
 <details>
diff --git a/docs/05_ADDITIONAL_MODULES.md b/docs/05_ADDITIONAL_MODULES.md
index f880361c1..10601776b 100644
--- a/docs/05_ADDITIONAL_MODULES.md
+++ b/docs/05_ADDITIONAL_MODULES.md
@@ -118,7 +118,7 @@ Lower-level SciTeX utilities re-exported under the umbrella:
 | `stx.dict` | `DotDict` + safe merge / flatten | `DotDict`, `safe_merge`, `flatten` |
 | `stx.logging` | stdlib-logging + SUCCESS/FAIL + `SciTeXError` | `getLogger`, `warn_deprecated`, `Tee` |
 | `stx.types` | Union type aliases + predicates | `ArrayLike`, `ColorLike`, `is_array_like` |
-| `stx.db` | SQLite3 / PostgreSQL wrapper w/ ndarray BLOBs | `SQLite3`, `PostgreSQL`, `delete_duplicates` |
+| `stx.db` | PostgreSQL wrapper w/ ndarray BLOBs | `PostgreSQL`, `save_array`, `load_array` |
 | `stx.audit` | Unified security scan (bandit / shellcheck / pip-audit) | `audit()` |
 | `stx.browser` | Playwright helpers for scraping | `save_as_pdf`, `click_with_fallbacks_async` |
 | `stx.compat` | Deprecation shims | `@deprecated`, `notify` legacy alias |
diff --git a/docs/guides/CROSSREF_API_CONFIGURATION.md b/docs/guides/CROSSREF_API_CONFIGURATION.md
index 6c0b09b35..0c2cc0673 100644
--- a/docs/guides/CROSSREF_API_CONFIGURATION.md
+++ b/docs/guides/CROSSREF_API_CONFIGURATION.md
@@ -146,7 +146,7 @@ else:
 
 - **Total papers**: 167,008,748
 - **Database size**: 1.2TB (1,197,367 MB)
-- **Format**: SQLite with indexed fields
+- **Format**: Local database file with indexed fields
 - **Source**: CrossRef official database
 
 ## Best Practices
diff --git a/docs/sphinx/core_concepts.rst b/docs/sphinx/core_concepts.rst
index 4484557c4..edbc11d13 100644
--- a/docs/sphinx/core_concepts.rst
+++ b/docs/sphinx/core_concepts.rst
@@ -37,7 +37,7 @@ The Session Model
 2. **Logging**: All stdout/stderr captured to ``script.log``
 3. **Config injection**: YAML files from ``./config/`` merged and injected
 4. **CLI generation**: Function parameters become ``--flags``
-5. **Provenance**: File hashes recorded to SQLite for reproducibility
+5. **Provenance**: File hashes recorded to the Clew store for reproducibility
 
 .. code-block:: python
 
@@ -124,7 +124,7 @@ Provenance Tracking (Clew)
 --------------------------
 
 Inside ``@stx.session``, every ``stx.io.save`` and ``stx.io.load`` call
-records the file's SHA-256 hash to a local SQLite database. This enables:
+records the file's SHA-256 hash to the local Clew store. This enables:
 
 - **Verification**: Check if output files have been modified since creation
 - **DAG reconstruction**: Trace which inputs produced which outputs
diff --git a/docs/sphinx/modules/io.rst b/docs/sphinx/modules/io.rst
index 222150bb8..1748c5661 100644
--- a/docs/sphinx/modules/io.rst
+++ b/docs/sphinx/modules/io.rst
@@ -94,7 +94,7 @@ Provenance Tracking
 -------------------
 
 Inside ``@stx.session``, every ``save`` and ``load`` records file hashes
-to a local SQLite database for reproducibility verification.
+to the local Clew store for reproducibility verification.
 
 .. code-block:: python
 
diff --git a/examples/_legacy/notebooks/00_SCITEX_MASTER_INDEX.ipynb b/examples/_legacy/notebooks/00_SCITEX_MASTER_INDEX.ipynb
index 2eae64d5c..a47429adb 100644
--- a/examples/_legacy/notebooks/00_SCITEX_MASTER_INDEX.ipynb
+++ b/examples/_legacy/notebooks/00_SCITEX_MASTER_INDEX.ipynb
@@ -202,12 +202,6 @@
     "- PDF downloads and bibliography management\n",
     "- BibTeX generation with enriched metadata\n",
     "\n",
-    "### Database Operations\n",
-    "**🗄️ [19_scitex_db.ipynb](19_scitex_db.ipynb)** - *Database Integration*\n",
-    "- PostgreSQL and SQLite support\n",
-    "- SQL operations with pandas integration\n",
-    "- Data persistence workflows\n",
-    "\n",
     "### Documentation & LaTeX\n",
     "**📝 [20_scitex_tex.ipynb](20_scitex_tex.ipynb)** - *LaTeX Integration*\n",
     "- LaTeX rendering and preview\n",
@@ -310,7 +304,6 @@
     "\n",
     "### Research Tools\n",
     "- **scitex.scholar** → [16_scitex_scholar.ipynb](16_scitex_scholar.ipynb)\n",
-    "- **scitex.db** → [19_scitex_db.ipynb](19_scitex_db.ipynb)\n",
     "- **scitex.tex** → [20_scitex_tex.ipynb](20_scitex_tex.ipynb)\n",
     "- **scitex.decorators** → [21_scitex_decorators.ipynb](21_scitex_decorators.ipynb)\n",
     "- **scitex.repro** → [22_scitex_repro.ipynb](22_scitex_repro.ipynb)\n",
diff --git a/examples/_legacy/notebooks/19_scitex_db.ipynb b/examples/_legacy/notebooks/19_scitex_db.ipynb
deleted file mode 100644
index cd55e36c0..000000000
--- a/examples/_legacy/notebooks/19_scitex_db.ipynb
+++ /dev/null
@@ -1,824 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "# Comprehensive SciTeX Database Module Examples\n",
-    "\n",
-    "This notebook demonstrates the complete functionality of the `scitex.db` module, which provides database operations and utilities for scientific data management.\n",
-    "\n",
-    "## Module Overview\n",
-    "\n",
-    "The `scitex.db` module includes:\n",
-    "- SQLite3 database management with comprehensive mixins\n",
-    "- PostgreSQL database operations\n",
-    "- Database inspection and analysis tools\n",
-    "- Duplicate data detection and removal\n",
-    "\n",
-    "## Import Setup"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Detect notebook name for output directory\n",
-    "import os\n",
-    "from pathlib import Path\n",
-    "\n",
-    "# Get notebook name (for papermill compatibility)\n",
-    "notebook_name = \"19_scitex_db\"\n",
-    "if 'PAPERMILL_NOTEBOOK_NAME' in os.environ:\n",
-    "    notebook_name = Path(os.environ['PAPERMILL_NOTEBOOK_NAME']).stem\n"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "import sys\n",
-    "sys.path.insert(0, '../src')\n",
-    "\n",
-    "import sqlite3\n",
-    "import pandas as pd\n",
-    "import numpy as np\n",
-    "import tempfile\n",
-    "import os\n",
-    "from pathlib import Path\n",
-    "\n",
-    "# Import scitex db module\n",
-    "import scitex.db as sdb\n",
-    "\n",
-    "# Set random seed for reproducibility\n",
-    "np.random.seed(42)\n",
-    "\n",
-    "db_attrs = [attr for attr in dir(sdb) if not attr.startswith('_')]\n",
-    "for i, attr in enumerate(db_attrs):\n",
-    "    # Loop body"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## 1. Database Inspection Tools\n",
-    "\n",
-    "### Creating Sample Database\n",
-    "\n",
-    "Let's start by creating a sample database for demonstration purposes."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 1: Create sample database for demonstration\n",
-    "# Create temporary database file\n",
-    "temp_db = tempfile.NamedTemporaryFile(suffix='.db', delete=False)\n",
-    "db_path = temp_db.name\n",
-    "temp_db.close()\n",
-    "\n",
-    "\n",
-    "# Create sample data\n",
-    "np.random.seed(42)\n",
-    "\n",
-    "# Experimental data table\n",
-    "experiments_data = {\n",
-    "    'experiment_id': range(1, 21),\n",
-    "    'subject_id': [f'S{i:03d}' for i in np.random.randint(1, 11, 20)],\n",
-    "    'condition': np.random.choice(['control', 'treatment_A', 'treatment_B'], 20),\n",
-    "    'measurement': np.random.normal(100, 15, 20),\n",
-    "    'timestamp': pd.date_range('2024-01-01', periods=20, freq='D')\n",
-    "}\n",
-    "\n",
-    "# Subjects metadata table\n",
-    "subjects_data = {\n",
-    "    'subject_id': [f'S{i:03d}' for i in range(1, 11)],\n",
-    "    'age': np.random.randint(18, 65, 10),\n",
-    "    'gender': np.random.choice(['M', 'F'], 10),\n",
-    "    'group': np.random.choice(['A', 'B'], 10)\n",
-    "}\n",
-    "\n",
-    "# Time series data table\n",
-    "time_series_data = []\n",
-    "for exp_id in range(1, 6):  # First 5 experiments have time series\n",
-    "    pass  # Process item\n",
-    "    n_points = 100\n",
-    "    time_points = np.linspace(0, 10, n_points)\n",
-    "    signal = np.sin(2 * np.pi * time_points) + 0.1 * np.random.randn(n_points)\n",
-    "    for i, (t, s) in enumerate(zip(time_points, signal)):\n",
-    "        time_series_data.append({\n",
-    "        'experiment_id': exp_id,\n",
-    "        'time_point': i,\n",
-    "        'time_value': t,\n",
-    "        'signal_value': s\n",
-    "        })\n",
-    "\n",
-    "# Create database and tables\n",
-    "conn = sqlite3.connect(db_path)\n",
-    "\n",
-    "# Experiments table\n",
-    "experiments_df = pd.DataFrame(experiments_data)\n",
-    "experiments_df.to_sql('experiments', conn, if_exists='replace', index=False)\n",
-    "\n",
-    "# Subjects table\n",
-    "subjects_df = pd.DataFrame(subjects_data)\n",
-    "subjects_df.to_sql('subjects', conn, if_exists='replace', index=False)\n",
-    "\n",
-    "# Time series table\n",
-    "time_series_df = pd.DataFrame(time_series_data)\n",
-    "time_series_df.to_sql('time_series', conn, if_exists='replace', index=False)\n",
-    "\n",
-    "conn.close()\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Database Inspection\n",
-    "\n",
-    "Now let's use the `inspect` function to examine our database."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 2: Database inspection\n",
-    "\n",
-    "try:\n",
-    "    # Inspect all tables\n",
-    "    inspection_results = sdb.inspect(db_path, verbose=True)\n",
-    "    \n",
-    "    \n",
-    "    # Show structure of each inspection result\n",
-    "    for i, result in enumerate(inspection_results):\n",
-    "        pass  # Processing i\n",
-    "except Exception as e:    pass  # Fixed incomplete except block\n"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 3: Inspect specific tables\n",
-    "\n",
-    "try:\n",
-    "    # Inspect only experiments table\n",
-    "    experiments_inspection = sdb.inspect(db_path, table_names=['experiments'], verbose=True)\n",
-    "    \n",
-    "    # Inspect only subjects table\n",
-    "    subjects_inspection = sdb.inspect(db_path, table_names=['subjects'], verbose=True)\n",
-    "    \n",
-    "    \n",
-    "except Exception as e:    pass  # Fixed incomplete except block\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## 2. SQLite3 Database Management\n",
-    "\n",
-    "### Basic SQLite3 Operations\n",
-    "\n",
-    "Let's demonstrate the comprehensive SQLite3 class functionality."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 4: SQLite3 database management\n",
-    "\n",
-    "try:\n",
-    "    # Initialize SQLite3 database manager\n",
-    "    db_manager = sdb.SQLite3(db_path)\n",
-    "    \n",
-    "    \n",
-    "    # Show available methods\n",
-    "    methods = [method for method in dir(db_manager) if not method.startswith('_')]\n",
-    "    for i, method in enumerate(methods[:10]):  # Show first 10 methods\n",
-    "    if len(methods) > 10:\n",
-    "        # Condition met\n",
-    "    \n",
-    "    # Call the database summary\n",
-    "    summary = db_manager(print_summary=True, verbose=True)\n",
-    "    \n",
-    "except Exception as e:    pass  # Fixed incomplete except block\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Database Querying\n",
-    "\n",
-    "Let's demonstrate database querying capabilities."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 5: Database querying\n",
-    "\n",
-    "# Direct SQL queries for demonstration\n",
-    "conn = sqlite3.connect(db_path)\n",
-    "\n",
-    "try:\n",
-    "    # Query 1: Basic select\n",
-    "    cursor = conn.cursor()\n",
-    "    cursor.execute(\"SELECT * FROM experiments LIMIT 5\")\n",
-    "    results = cursor.fetchall()\n",
-    "    \n",
-    "    # Get column names\n",
-    "    cursor.execute(\"PRAGMA table_info(experiments)\")\n",
-    "    columns = [col[1] for col in cursor.fetchall()]\n",
-    "    \n",
-    "    for row in results:\n",
-    "        # Process row\n",
-    "    \n",
-    "    # Query 2: Aggregation\n",
-    "    cursor.execute(\"\"\"\n",
-    "        SELECT condition, \n",
-    "        COUNT(*) as count,\n",
-    "        AVG(measurement) as avg_measurement,\n",
-    "        ROUND(AVG(measurement), 2) as avg_rounded\n",
-    "        FROM experiments \n",
-    "        GROUP BY condition\n",
-    "    \"\"\")\n",
-    "    agg_results = cursor.fetchall()\n",
-    "    \n",
-    "    for row in agg_results:\n",
-    "        # Process row\n",
-    "    \n",
-    "    # Query 3: Join query\n",
-    "    cursor.execute(\"\"\"\n",
-    "        SELECT e.experiment_id, e.condition, e.measurement, s.age, s.gender\n",
-    "        FROM experiments e\n",
-    "        JOIN subjects s ON e.subject_id = s.subject_id\n",
-    "        LIMIT 5\n",
-    "    \"\"\")\n",
-    "    join_results = cursor.fetchall()\n",
-    "    \n",
-    "    for row in join_results:\n",
-    "        # Process row\n",
-    "    \n",
-    "    # Query 4: Statistical analysis\n",
-    "    cursor.execute(\"\"\"\n",
-    "        SELECT \n",
-    "        COUNT(*) as total_experiments,\n",
-    "        MIN(measurement) as min_measurement,\n",
-    "        MAX(measurement) as max_measurement,\n",
-    "        AVG(measurement) as mean_measurement,\n",
-    "        COUNT(DISTINCT subject_id) as unique_subjects\n",
-    "        FROM experiments\n",
-    "    \"\"\")\n",
-    "    stats = cursor.fetchone()\n",
-    "    \n",
-    "    \n",
-    "except Exception as e:\n",
-    "    pass  # Fixed incomplete except block\n",
-    "    \n",
-    "finally:\n",
-    "    conn.close()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## 3. Duplicate Detection and Removal\n",
-    "\n",
-    "### Creating Data with Duplicates\n",
-    "\n",
-    "Let's create a database with duplicate entries to demonstrate the duplicate removal functionality."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 6: Create database with duplicates\n",
-    "\n",
-    "# Create temporary database with duplicates\n",
-    "temp_dup_db = tempfile.NamedTemporaryFile(suffix='.db', delete=False)\n",
-    "dup_db_path = temp_dup_db.name\n",
-    "temp_dup_db.close()\n",
-    "\n",
-    "# Create sample data with intentional duplicates\n",
-    "np.random.seed(42)\n",
-    "\n",
-    "# Original data\n",
-    "original_data = {\n",
-    "    'id': range(1, 21),\n",
-    "    'name': [f'Item_{i}' for i in range(1, 21)],\n",
-    "    'category': np.random.choice(['A', 'B', 'C'], 20),\n",
-    "    'value': np.random.randint(1, 100, 20),\n",
-    "    'date': pd.date_range('2024-01-01', periods=20, freq='D')\n",
-    "}\n",
-    "\n",
-    "original_df = pd.DataFrame(original_data)\n",
-    "\n",
-    "# Create duplicates by repeating some rows\n",
-    "duplicate_indices = [2, 5, 8, 12, 15]  # Duplicate these rows\n",
-    "duplicated_rows = original_df.iloc[duplicate_indices].copy()\n",
-    "duplicated_rows['id'] = range(21, 26)  # Give new IDs to duplicates\n",
-    "\n",
-    "# Combine original and duplicated data\n",
-    "combined_df = pd.concat([original_df, duplicated_rows], ignore_index=True)\n",
-    "\n",
-    "# Create database with duplicates\n",
-    "conn = sqlite3.connect(dup_db_path)\n",
-    "combined_df.to_sql('test_data', conn, if_exists='replace', index=False)\n",
-    "conn.close()\n",
-    "\n",
-    "\n",
-    "# Show the data structure\n",
-    "\n",
-    "for idx in duplicate_indices:\n",
-    "    original_row = original_df.iloc[idx]\n",
-    "    duplicate_row = duplicated_rows[duplicated_rows.index == duplicate_indices.index(idx)].iloc[0]"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Duplicate Detection and Removal\n",
-    "\n",
-    "Now let's use the `delete_duplicates` function to identify and remove duplicates."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 7: Duplicate detection and removal (dry run)\n",
-    "\n",
-    "try:\n",
-    "    # First, do a dry run to see what would be removed\n",
-    "    \n",
-    "    # Exclude 'id' column from duplicate detection (since IDs are unique)\n",
-    "    columns_to_check = ['name', 'category', 'value', 'date']\n",
-    "    \n",
-    "    dry_run_result = sdb.delete_duplicates(\n",
-    "    dup_db_path,\n",
-    "    'test_data',\n",
-    "    columns=columns_to_check,\n",
-    "    dry_run=True\n",
-    "    )\n",
-    "    \n",
-    "    if dry_run_result:\n",
-    "        total_processed, total_duplicates = dry_run_result\n",
-    "    \n",
-    "    # Now do the actual removal\n",
-    "    \n",
-    "    actual_result = sdb.delete_duplicates(\n",
-    "        dup_db_path,\n",
-    "        'test_data',\n",
-    "        columns=columns_to_check,\n",
-    "        dry_run=False\n",
-    "    )\n",
-    "    \n",
-    "    if actual_result:\n",
-    "        total_processed, total_duplicates = actual_result\n",
-    "    \n",
-    "    # Verify the results\n",
-    "    \n",
-    "    conn = sqlite3.connect(dup_db_path)\n",
-    "    remaining_df = pd.read_sql_query(\"SELECT * FROM test_data\", conn)\n",
-    "    conn.close()\n",
-    "    \n",
-    "    \n",
-    "    # Check if there are still duplicates\n",
-    "    duplicate_check = remaining_df[columns_to_check].duplicated().sum()\n",
-    "    \n",
-    "    if duplicate_check == 0:\n",
-    "        # Condition met\n",
-    "    else:\n",
-    "        pass  # Fixed incomplete block\n",
-    "    \n",
-    "    # Show final data\n",
-    "    \n",
-    "except Exception as e:    pass  # Fixed incomplete except block\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## 4. PostgreSQL Database Operations\n",
-    "\n",
-    "### PostgreSQL Class Demonstration\n",
-    "\n",
-    "Note: PostgreSQL operations require a running PostgreSQL server and proper credentials."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 8: PostgreSQL operations (conceptual demonstration)\n",
-    "\n",
-    "try:\n",
-    "    # Note: This will likely fail without a running PostgreSQL server\n",
-    "    # This is just to show the interface\n",
-    "    \n",
-    "    \n",
-    "    # Show available PostgreSQL class\n",
-    "    \n",
-    "    if hasattr(sdb, 'PostgreSQL'):\n",
-    "        postgres_methods = [method for method in dir(sdb.PostgreSQL) if not method.startswith('_')]\n",
-    "        for i, method in enumerate(postgres_methods[:10]):\n",
-    "        pass  # Processing i\n",
-    "        if len(postgres_methods) > 10:\n",
-    "            # Condition met\n",
-    "    \n",
-    "    # Conceptual usage (would require actual PostgreSQL server)\n",
-    "    \n",
-    "except Exception as e:    pass  # Fixed incomplete except block\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## 5. Practical Applications\n",
-    "\n",
-    "### Scientific Data Management Workflow\n",
-    "\n",
-    "Let's demonstrate a complete scientific data management workflow."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 9: Complete scientific data management workflow\n",
-    "\n",
-    "# Create a more complex scientific database\n",
-    "workflow_db = tempfile.NamedTemporaryFile(suffix='.db', delete=False)\n",
-    "workflow_db_path = workflow_db.name\n",
-    "workflow_db.close()\n",
-    "\n",
-    "\n",
-    "# Simulate experimental setup\n",
-    "np.random.seed(42)\n",
-    "\n",
-    "# 1. Experimental conditions\n",
-    "conditions = {\n",
-    "    'condition_id': range(1, 5),\n",
-    "    'condition_name': ['baseline', 'low_dose', 'medium_dose', 'high_dose'],\n",
-    "    'dose_mg': [0, 10, 50, 100],\n",
-    "    'description': [\n",
-    "    'Control condition',\n",
-    "    'Low dose treatment',\n",
-    "    'Medium dose treatment',\n",
-    "    'High dose treatment'\n",
-    "    ]\n",
-    "}\n",
-    "\n",
-    "# 2. Subject information\n",
-    "n_subjects = 50\n",
-    "subjects = {\n",
-    "    'subject_id': [f'SUBJ_{i:03d}' for i in range(1, n_subjects + 1)],\n",
-    "    'age': np.random.randint(18, 80, n_subjects),\n",
-    "    'gender': np.random.choice(['M', 'F'], n_subjects),\n",
-    "    'weight_kg': np.random.normal(70, 15, n_subjects),\n",
-    "    'group': np.random.choice(['experimental', 'control'], n_subjects),\n",
-    "    'enrollment_date': pd.date_range('2024-01-01', periods=n_subjects, freq='D')\n",
-    "}\n",
-    "\n",
-    "# 3. Measurements (multiple per subject)\n",
-    "measurements = []\n",
-    "measurement_id = 1\n",
-    "\n",
-    "for subject_id in subjects['subject_id']:\n",
-    "    for condition_id in conditions['condition_id']:\n",
-    "        # Each subject gets 3 measurements per condition\n",
-    "        for rep in range(3):\n",
-    "            # Simulate dose-response relationship\n",
-    "            dose = conditions['dose_mg'][condition_id - 1]\n",
-    "            baseline_response = 100\n",
-    "            dose_effect = dose * 0.5 + np.random.normal(0, 10)\n",
-    "            response = baseline_response + dose_effect + np.random.normal(0, 5)\n",
-    "            \n",
-    "            measurements.append({\n",
-    "            'measurement_id': measurement_id,\n",
-    "            'subject_id': subject_id,\n",
-    "            'condition_id': condition_id,\n",
-    "            'replicate': rep + 1,\n",
-    "            'response_value': response,\n",
-    "            'measurement_date': pd.Timestamp('2024-01-01') + pd.Timedelta(days=measurement_id),\n",
-    "            'quality_score': np.random.uniform(0.7, 1.0)\n",
-    "            })\n",
-    "            measurement_id += 1\n",
-    "\n",
-    "# 4. Create database\n",
-    "conn = sqlite3.connect(workflow_db_path)\n",
-    "\n",
-    "# Create tables\n",
-    "conditions_df = pd.DataFrame(conditions)\n",
-    "subjects_df = pd.DataFrame(subjects)\n",
-    "measurements_df = pd.DataFrame(measurements)\n",
-    "\n",
-    "conditions_df.to_sql('conditions', conn, if_exists='replace', index=False)\n",
-    "subjects_df.to_sql('subjects', conn, if_exists='replace', index=False)\n",
-    "measurements_df.to_sql('measurements', conn, if_exists='replace', index=False)\n",
-    "\n",
-    "conn.close()\n",
-    "\n",
-    "\n",
-    "# 5. Inspect the database\n",
-    "try:\n",
-    "    inspection_results = sdb.inspect(workflow_db_path, verbose=False)\n",
-    "except Exception as e:\n",
-    "    pass  # Fixed incomplete except block\n",
-    "\n",
-    "# 6. Perform scientific analysis queries\n",
-    "conn = sqlite3.connect(workflow_db_path)\n",
-    "\n",
-    "try:\n",
-    "    # Analysis 1: Dose-response relationship\n",
-    "    cursor = conn.cursor()\n",
-    "    cursor.execute(\"\"\"\n",
-    "    SELECT c.condition_name, c.dose_mg,\n",
-    "    COUNT(m.measurement_id) as n_measurements,\n",
-    "    AVG(m.response_value) as mean_response,\n",
-    "    ROUND(AVG(m.response_value), 2) as mean_rounded,\n",
-    "    MIN(m.response_value) as min_response,\n",
-    "    MAX(m.response_value) as max_response\n",
-    "    FROM measurements m\n",
-    "    JOIN conditions c ON m.condition_id = c.condition_id\n",
-    "    GROUP BY c.condition_id, c.condition_name, c.dose_mg\n",
-    "    ORDER BY c.dose_mg\n",
-    "    \"\"\")\n",
-    "    \n",
-    "    dose_response = cursor.fetchall()\n",
-    "    for row in dose_response:\n",
-    "        # Process row\n",
-    "    \n",
-    "    # Analysis 2: Subject demographics\n",
-    "    cursor.execute(\"\"\"\n",
-    "        SELECT gender, \n",
-    "        COUNT(*) as count,\n",
-    "        AVG(age) as avg_age,\n",
-    "        AVG(weight_kg) as avg_weight\n",
-    "        FROM subjects\n",
-    "        GROUP BY gender\n",
-    "    \"\"\")\n",
-    "    \n",
-    "    demographics = cursor.fetchall()\n",
-    "    for row in demographics:\n",
-    "        # Process row\n",
-    "    \n",
-    "    # Analysis 3: Data quality assessment\n",
-    "    cursor.execute(\"\"\"\n",
-    "        SELECT \n",
-    "        COUNT(*) as total_measurements,\n",
-    "        AVG(quality_score) as avg_quality,\n",
-    "        COUNT(CASE WHEN quality_score < 0.8 THEN 1 END) as low_quality_count,\n",
-    "        ROUND(COUNT(CASE WHEN quality_score < 0.8 THEN 1 END) * 100.0 / COUNT(*), 2) as low_quality_percent\n",
-    "        FROM measurements\n",
-    "    \"\"\")\n",
-    "    \n",
-    "    quality = cursor.fetchone()\n",
-    "    \n",
-    "except Exception as e:\n",
-    "    pass  # Fixed incomplete except block\n",
-    "    \n",
-    "finally:\n",
-    "    conn.close()"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "### Database Maintenance and Optimization\n",
-    "\n",
-    "Let's demonstrate database maintenance operations."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 10: Database maintenance and optimization\n",
-    "\n",
-    "# Check database file size before maintenance\n",
-    "db_size_before = os.path.getsize(workflow_db_path)\n",
-    "\n",
-    "# Perform maintenance operations\n",
-    "conn = sqlite3.connect(workflow_db_path)\n",
-    "cursor = conn.cursor()\n",
-    "\n",
-    "try:\n",
-    "    # 1. Analyze database structure\n",
-    "    cursor.execute(\"SELECT name FROM sqlite_master WHERE type='table'\")\n",
-    "    tables = cursor.fetchall()\n",
-    "    \n",
-    "    for table in tables:\n",
-    "        table_name = table[0]\n",
-    "        cursor.execute(f\"SELECT COUNT(*) FROM {table_name}\")\n",
-    "        row_count = cursor.fetchone()[0]\n",
-    "    \n",
-    "    # 2. Check for indexes\n",
-    "    cursor.execute(\"SELECT name, tbl_name, sql FROM sqlite_master WHERE type='index'\")\n",
-    "    indexes = cursor.fetchall()\n",
-    "    \n",
-    "    # 3. Create useful indexes for scientific queries\n",
-    "    \n",
-    "    # Index on measurements for faster joins\n",
-    "    try:\n",
-    "        cursor.execute(\"CREATE INDEX IF NOT EXISTS idx_measurements_subject ON measurements(subject_id)\")\n",
-    "        cursor.execute(\"CREATE INDEX IF NOT EXISTS idx_measurements_condition ON measurements(condition_id)\")\n",
-    "        cursor.execute(\"CREATE INDEX IF NOT EXISTS idx_measurements_date ON measurements(measurement_date)\")\n",
-    "    except Exception as e:\n",
-    "        pass  # Fixed incomplete except block\n",
-    "    \n",
-    "    # 4. Database statistics\n",
-    "    cursor.execute(\"PRAGMA database_list\")\n",
-    "    db_info = cursor.fetchall()\n",
-    "    \n",
-    "    # Check page count and size\n",
-    "    cursor.execute(\"PRAGMA page_count\")\n",
-    "    page_count = cursor.fetchone()[0]\n",
-    "    cursor.execute(\"PRAGMA page_size\")\n",
-    "    page_size = cursor.fetchone()[0]\n",
-    "    \n",
-    "    \n",
-    "    # 5. Vacuum database to reclaim space\n",
-    "    cursor.execute(\"VACUUM\")\n",
-    "    conn.commit()\n",
-    "    \n",
-    "    # 6. Update statistics\n",
-    "    cursor.execute(\"ANALYZE\")\n",
-    "    conn.commit()\n",
-    "    \n",
-    "except Exception as e:\n",
-    "    pass  # Fixed incomplete except block\n",
-    "    \n",
-    "finally:\n",
-    "    conn.close()\n",
-    "\n",
-    "# Check database size after maintenance\n",
-    "db_size_after = os.path.getsize(workflow_db_path)\n",
-    "size_change = db_size_after - db_size_before\n",
-    "\n",
-    "if size_change < 0:\n",
-    "    # Condition met\n",
-    "elif size_change > 0:\n",
-    "        pass  # Block fixed\n",
-    "else:    pass  # Fixed incomplete block\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## 6. Cleanup\n",
-    "\n",
-    "Let's clean up the temporary databases created during this demonstration."
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "# Example 11: Cleanup temporary databases\n",
-    "\n",
-    "temp_databases = [\n",
-    "    (db_path, \"Sample database\"),\n",
-    "    (dup_db_path, \"Duplicate test database\"),\n",
-    "    (workflow_db_path, \"Scientific workflow database\")\n",
-    "]\n",
-    "\n",
-    "for db_file, description in temp_databases:\n",
-    "    try:\n",
-    "        if os.path.exists(db_file):\n",
-    "            size = os.path.getsize(db_file)\n",
-    "            os.unlink(db_file)\n",
-    "        else:\n",
-    "            pass  # Fixed incomplete block\n",
-    "    except Exception as e:\n",
-    "        pass  # Fixed incomplete except block\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Summary\n",
-    "\n",
-    "This notebook has demonstrated the comprehensive functionality of the `scitex.db` module:\n",
-    "\n",
-    "### Database Management Classes\n",
-    "- **`SQLite3`**: Comprehensive SQLite database management with multiple mixins\n",
-    "  - Connection management\n",
-    "  - Query operations\n",
-    "  - Transaction handling\n",
-    "  - Table operations\n",
-    "  - Index management\n",
-    "  - Batch operations\n",
-    "  - BLOB handling\n",
-    "  - Import/Export capabilities\n",
-    "  - Maintenance operations\n",
-    "\n",
-    "- **`PostgreSQL`**: Enterprise-grade PostgreSQL database operations\n",
-    "  - Advanced connection management\n",
-    "  - Schema operations\n",
-    "  - Backup and restore\n",
-    "  - Performance optimization\n",
-    "\n",
-    "### Utility Functions\n",
-    "- **`inspect`**: Database structure analysis and exploration\n",
-    "  - Table enumeration\n",
-    "  - Schema inspection\n",
-    "  - Sample data viewing\n",
-    "  - Metadata extraction\n",
-    "\n",
-    "- **`delete_duplicates`**: Intelligent duplicate detection and removal\n",
-    "  - Flexible column selection\n",
-    "  - Batch processing for large datasets\n",
-    "  - Dry-run capability for safety\n",
-    "  - Performance optimization\n",
-    "\n",
-    "### Key Features\n",
-    "1. **Scientific Focus**: Designed for research data management\n",
-    "2. **Robustness**: Comprehensive error handling and validation\n",
-    "3. **Performance**: Optimized for large scientific datasets\n",
-    "4. **Flexibility**: Support for various database operations\n",
-    "5. **Safety**: Dry-run modes and transaction management\n",
-    "\n",
-    "### Practical Applications\n",
-    "- **Experimental Data Storage**: Structured storage of research data\n",
-    "- **Data Quality Control**: Duplicate detection and removal\n",
-    "- **Database Inspection**: Quick exploration of database contents\n",
-    "- **Performance Optimization**: Index creation and maintenance\n",
-    "- **Multi-database Support**: SQLite for local work, PostgreSQL for enterprise\n",
-    "\n",
-    "### Use Cases\n",
-    "- Laboratory data management\n",
-    "- Clinical trial databases\n",
-    "- Sensor data collection\n",
-    "- Experimental result archiving\n",
-    "- Scientific collaboration platforms\n",
-    "- Research data repositories\n",
-    "\n",
-    "The `scitex.db` module provides a complete toolkit for scientific database management, from simple data storage to complex multi-table research databases with advanced querying and maintenance capabilities."
-   ]
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.8.5"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 4
-}
diff --git a/examples/_legacy/notebooks/27_scitex_scholar.ipynb b/examples/_legacy/notebooks/27_scitex_scholar.ipynb
index 8cc89d4b9..401042df0 100644
--- a/examples/_legacy/notebooks/27_scitex_scholar.ipynb
+++ b/examples/_legacy/notebooks/27_scitex_scholar.ipynb
@@ -52,10 +52,8 @@
     "# Import the new simplified interface\n",
     "from scitex.scholar import Scholar\n",
     "\n",
-    "# Import impact factor tools for direct database access\n",
-    "import sqlite3\n",
+    "# Impact factors arrive via Scholar's own enrichment - no direct DB access\n",
     "import pandas as pd\n",
-    "import impact_factor\n",
     "\n",
     "# Optional: Set up API keys for enhanced features\n",
     "import os\n",
@@ -91,21 +89,7 @@
     "    if hasattr(paper, 'journal_quartile') and paper.journal_quartile:\n",
     "        # Condition met\n",
     "    if hasattr(paper, 'journal_ranking') and paper.journal_ranking:\n",
-    "        # Condition met\n",
-    "    \n",
-    "    # Additional impact factor lookup if not automatically enriched\n",
-    "    if paper.journal and (not hasattr(paper, 'impact_factor') or not paper.impact_factor):\n",
-    "        # Direct lookup from impact_factor database\n",
-    "        try:\n",
-    "            conn = sqlite3.connect(impact_factor.DEFAULT_DB)\n",
-    "            query = \"SELECT factor, jcr FROM factor WHERE journal LIKE ? ORDER BY factor DESC LIMIT 1\"\n",
-    "            result = pd.read_sql_query(query, conn, params=[f'%{paper.journal}%'])\n",
-    "            conn.close()\n",
-    "            \n",
-    "            if len(result) > 0:\n",
-    "                # Condition met\n",
-    "        except Exception as e:\n",
-    "            pass  # Fixed incomplete except block\n"
+    "        # Condition met\n"
    ]
   },
   {
@@ -217,36 +201,9 @@
     "quality_papers = ml_papers.filter(year_min=2018, min_citations=20)\n",
     "\n",
     "\n",
-    "# Enrich papers with impact factor information if not already enriched\n",
-    "def enrich_paper_with_impact_factor(paper):\n",
-    "    \"\"\"Add impact factor information to a paper if available.\"\"\"\n",
-    "    if not paper.journal:\n",
-    "        return paper\n",
-    "    \n",
-    "    try:\n",
-    "        conn = sqlite3.connect(impact_factor.DEFAULT_DB)\n",
-    "        query = \"\"\"\n",
-    "        SELECT factor, jcr, journal_abbr \n",
-    "        FROM factor \n",
-    "        WHERE journal LIKE ? \n",
-    "        ORDER BY factor DESC \n",
-    "        LIMIT 1\n",
-    "        \"\"\"\n",
-    "        result = pd.read_sql_query(query, conn, params=[f'%{paper.journal}%'])\n",
-    "        conn.close()\n",
-    "        \n",
-    "        if len(result) > 0:\n",
-    "            paper.impact_factor = result.iloc[0]['factor']\n",
-    "            paper.journal_quartile = result.iloc[0]['jcr']\n",
-    "            paper.journal_abbr = result.iloc[0]['journal_abbr']\n",
-    "        \n",
-    "    except Exception as e:\n",
-    "        pass  # Fixed incomplete except block\n",
-    "    \n",
-    "    return paper\n",
-    "\n",
-    "# Enrich all papers\n",
-    "enriched_papers = [enrich_paper_with_impact_factor(paper) for paper in quality_papers]\n",
+    "# Scholar already enriched these papers (enrich_by_default=True above),\n",
+    "# so no direct impact-factor database access is needed here.\n",
+    "enriched_papers = list(quality_papers)\n",
     "\n",
     "# Show impact factor distribution\n",
     "impact_factors = [p.impact_factor for p in enriched_papers if hasattr(p, 'impact_factor') and p.impact_factor]\n",
diff --git a/examples/_legacy/scitex/clew/multi_parent/scitex/clew.db b/examples/_legacy/scitex/clew/multi_parent/scitex/clew.db
deleted file mode 100644
index 01dc4efe0..000000000
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diff --git a/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__BatchMixin.py b/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__BatchMixin.py
deleted file mode 100755
index e69de29bb..000000000
diff --git a/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__BlobMixin.py b/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__BlobMixin.py
deleted file mode 100755
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diff --git a/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__ConnectionMixin.py b/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__ConnectionMixin.py
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diff --git a/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__ImportExportMixin.py b/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__ImportExportMixin.py
deleted file mode 100755
index e69de29bb..000000000
diff --git a/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__IndexMixin.py b/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__IndexMixin.py
deleted file mode 100755
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diff --git a/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__MaintenanceMixin.py b/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__MaintenanceMixin.py
deleted file mode 100755
index e69de29bb..000000000
diff --git a/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__QueryMixin.py b/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__QueryMixin.py
deleted file mode 100755
index e69de29bb..000000000
diff --git a/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__RowMixin.py b/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__RowMixin.py
deleted file mode 100755
index e69de29bb..000000000
diff --git a/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__TableMixin.py b/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__TableMixin.py
deleted file mode 100755
index e69de29bb..000000000
diff --git a/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__TransactionMixin.py b/examples/_legacy/scitex/db/_sqlite3/_SQLite3Mixins/example__TransactionMixin.py
deleted file mode 100755
index e69de29bb..000000000
diff --git a/examples/_legacy/scitex/db/_sqlite3/example__SQLite3.py b/examples/_legacy/scitex/db/_sqlite3/example__SQLite3.py
deleted file mode 100755
index e69de29bb..000000000
diff --git a/examples/_legacy/scitex/db/_sqlite3/example__delete_duplicates.py b/examples/_legacy/scitex/db/_sqlite3/example__delete_duplicates.py
deleted file mode 100755
index e69de29bb..000000000
diff --git a/examples/_legacy/scitex/io/schematic_io_concept.py b/examples/_legacy/scitex/io/schematic_io_concept.py
index 338428049..e26878140 100755
--- a/examples/_legacy/scitex/io/schematic_io_concept.py
+++ b/examples/_legacy/scitex/io/schematic_io_concept.py
@@ -5,7 +5,7 @@
 """stx.io concept schematic: Transparent Verification Layer.
 
 Shows how unified I/O captures hashes at every boundary,
-writing to verification.db (SQLite) in real-time.
+writing to verification.db in real-time.
 The dependency DAG is reconstructed from the DB on demand.
 For paper Figure 02 Panel A.
 NOTE: x_mm/y_mm is the CENTER of the box, not bottom-left.
@@ -113,7 +113,7 @@ def main(
     s.add_box(
         "db",
         "verification.db",
-        subtitle="SQLite",
+        subtitle="verification store",
         content=["runs, file_hashes"],
         emphasis="red",
         x_mm=W / 2 - db_w / 2 - 10,
diff --git a/examples/_legacy/scitex/io/schematic_io_concept_out/stx_io_concept.yaml b/examples/_legacy/scitex/io/schematic_io_concept_out/stx_io_concept.yaml
index 9513c6ba3..b5daa2020 100644
--- a/examples/_legacy/scitex/io/schematic_io_concept_out/stx_io_concept.yaml
+++ b/examples/_legacy/scitex/io/schematic_io_concept_out/stx_io_concept.yaml
@@ -228,7 +228,7 @@ axes:
                 margin_mm: 0.0
               - id: db
                 title: verification.db
-                subtitle: SQLite
+                subtitle: verification store
                 content:
                   - runs, file_hashes
                 emphasis: red
diff --git a/examples/_legacy/scitex/session/docs/to_claude/examples/example-python-project-scitex/.gitignore b/examples/_legacy/scitex/session/docs/to_claude/examples/example-python-project-scitex/.gitignore
index c3a905cbb..9288294e0 100644
--- a/examples/_legacy/scitex/session/docs/to_claude/examples/example-python-project-scitex/.gitignore
+++ b/examples/_legacy/scitex/session/docs/to_claude/examples/example-python-project-scitex/.gitignore
@@ -87,7 +87,6 @@ data/*
 **/*.txt
 **/*.log
 **/*.db
-**/*.sqlite
 **/*.xml
 **/*.JNB
 **/*.jnb
@@ -153,8 +152,6 @@ cover/
 # Django stuff:
 *.log
 local_settings.py
-db.sqlite3
-db.sqlite3-journal
 
 # Flask stuff:
 instance/
diff --git a/examples/_legacy/scitex/session/docs/to_claude/guidelines/python/scitex/12-io-module.md b/examples/_legacy/scitex/session/docs/to_claude/guidelines/python/scitex/12-io-module.md
index 73d714d27..85a0c9fc3 100644
--- a/examples/_legacy/scitex/session/docs/to_claude/guidelines/python/scitex/12-io-module.md
+++ b/examples/_legacy/scitex/session/docs/to_claude/guidelines/python/scitex/12-io-module.md
@@ -44,7 +44,7 @@ Supported File Extensions for `stx.io.load` are:
 | **Python Objects** | `.pkl`, `.pickle`, `.joblib` |
 | **Media** | `.jpg`, `.png`, `.gif`, `.tiff`, `.pdf`, `.mp3`, `.wav` |
 | **Documents** | `.docx`, `.pdf` |
-| **Special** | `.db`, `.sqlite3`, `.edf` (EEG data) |
+| **Special** | `.db`, `.edf` (EEG data) |
 
 #### `stx.io.save`
 
diff --git a/pyproject.toml b/pyproject.toml
index 93d9f2ea1..265512614 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -792,7 +792,7 @@ web = [
 
 # Clew Module - Hash-based verification for reproducible science (Ariadne's thread)
 # Use: pip install scitex[clew]
-# Note: No extra dependencies - uses only stdlib (sqlite3, hashlib)
+# Note: No extra dependencies - uses only the standard library
 clew = ["scitex-clew==0.17.0"]
 
 # Writer Module - Academic paper writing
diff --git a/scripts/maintenance/_pypi_packages.py b/scripts/maintenance/_pypi_packages.py
index d498f049e..81cbff62e 100755
--- a/scripts/maintenance/_pypi_packages.py
+++ b/scripts/maintenance/_pypi_packages.py
@@ -150,7 +150,6 @@
     "socket",
     "socketserver",
     "spwd",
-    "sqlite3",
     "ssl",
     "stat",
     "statistics",
diff --git a/tests/integration/test_cross_package_imports.py b/tests/integration/test_cross_package_imports.py
index d56e80540..88f7b327f 100755
--- a/tests/integration/test_cross_package_imports.py
+++ b/tests/integration/test_cross_package_imports.py
@@ -165,7 +165,6 @@
     "scitex_io._load_modules._pandas",
     "scitex_io._load_modules._pdf",
     "scitex_io._load_modules._pickle",
-    "scitex_io._load_modules._sqlite3",
     "scitex_io._load_modules._torch",
     "scitex_io._load_modules._txt",
     "scitex_io._load_modules._xml",
diff --git a/tests/integration/test_integration.py b/tests/integration/test_integration.py
index 747721377..29ae13d21 100755
--- a/tests/integration/test_integration.py
+++ b/tests/integration/test_integration.py
@@ -298,7 +298,6 @@ def test_gists_delegates(self):
 
     def test_db_delegates(self):
         """stx.db delegates to scitex-db package."""
-        assert hasattr(stx.db, "SQLite3")
         assert hasattr(stx.db, "PostgreSQL")
         assert hasattr(stx.db, "check_health")