diff --git a/10 Backup/.env b/10 Backup/.env
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+++ b/10 Backup/.env	
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+KB_MYSQL_HOST=192.168.1.50
+KB_MYSQL_PORT=3306
+KB_MYSQL_USER=root
+KB_MYSQL_PASSWORD=Vlado9674+
+KB_MYSQL_DB=kanboard
+
+KB_BACKUP_DIR=U:\MySQLBackup\Kanboard
+KB_KEEP_DAYS=30
\ No newline at end of file
diff --git a/10 Backup/10 KanboardBackup.py b/10 Backup/10 KanboardBackup.py
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index 0000000..48cdca6
--- /dev/null
+++ b/10 Backup/10 KanboardBackup.py	
@@ -0,0 +1,124 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import os
+import sys
+import gzip
+import shutil
+import subprocess
+from datetime import datetime, timedelta
+from pathlib import Path
+
+PROJECT_ROOT = Path(__file__).resolve().parent.parent
+MYSQLDUMP = PROJECT_ROOT / "bin" / "mysqldump.exe"
+
+
+def load_dotenv(dotenv_path: Path) -> None:
+    if not dotenv_path.exists():
+        return
+    for line in dotenv_path.read_text(encoding="utf-8").splitlines():
+        line = line.strip()
+        if not line or line.startswith("#") or "=" not in line:
+            continue
+        k, v = line.split("=", 1)
+        k = k.strip()
+        v = v.strip().strip('"').strip("'")
+        os.environ.setdefault(k, v)
+
+def require_env(name: str) -> str:
+    v = os.getenv(name)
+    if not v:
+        raise SystemExit(f"Chybí proměnná {name} (dej ji do .env nebo env).")
+    return v
+
+def run(cmd: list[str], *, cwd: Path | None = None) -> None:
+    # pro ladění si můžeš odkomentovat print(cmd)
+    p = subprocess.run(cmd, cwd=str(cwd) if cwd else None)
+    if p.returncode != 0:
+        raise SystemExit(f"Příkaz selhal (exit={p.returncode}): {' '.join(cmd)}")
+
+def main() -> None:
+    here = Path(__file__).resolve().parent
+    load_dotenv(here / ".env")
+
+    host = require_env("KB_MYSQL_HOST")
+    port = require_env("KB_MYSQL_PORT")
+    user = require_env("KB_MYSQL_USER")
+    password = require_env("KB_MYSQL_PASSWORD")
+    db = require_env("KB_MYSQL_DB")
+
+    backup_dir = Path(os.getenv("KB_BACKUP_DIR", "./backups")).resolve()
+    keep_days = int(os.getenv("KB_KEEP_DAYS", "30"))
+
+    backup_dir.mkdir(parents=True, exist_ok=True)
+
+    ts = datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
+    sql_path = backup_dir / f"kanboard_{db}_{ts}.sql"
+    gz_path = backup_dir / f"{sql_path.name}.gz"
+
+    # Bezpečně: vytvoříme dočasný mysql config soubor, aby heslo nebylo v "ps"
+    cnf_path = backup_dir / f".mysql_{db}_{ts}.cnf"
+    cnf_path.write_text(
+        "[client]\n"
+        f"host={host}\n"
+        f"port={port}\n"
+        f"user={user}\n"
+        f"password={password}\n",
+        encoding="utf-8"
+    )
+    try:
+        # omezit práva (na Linuxu/Unraid ok; na Windows to ignoruj)
+        try:
+            os.chmod(cnf_path, 0o600)
+        except Exception:
+            pass
+
+        # Mysqldump – kompletní pro obnovu
+        dump_cmd = [
+            str(MYSQLDUMP),
+            f"--defaults-extra-file={str(cnf_path)}",
+            "--single-transaction",
+            "--routines",
+            "--triggers",
+            "--events",
+            "--hex-blob",
+            "--default-character-set=utf8mb4",
+            "--set-gtid-purged=OFF",
+            "--databases", db,
+        ]
+
+        print(f"[OK] Dělám dump DB '{db}' -> {gz_path}")
+        # Dump do .sql a rovnou gzip
+        with subprocess.Popen(dump_cmd, stdout=subprocess.PIPE) as proc:
+            if proc.stdout is None:
+                raise SystemExit("Nepodařilo se získat stdout z mysqldump.")
+            with gzip.open(gz_path, "wb", compresslevel=6) as gz:
+                shutil.copyfileobj(proc.stdout, gz)
+            rc = proc.wait()
+            if rc != 0:
+                raise SystemExit(f"mysqldump selhal (exit={rc}).")
+
+        # Malá kontrola velikosti
+        size = gz_path.stat().st_size
+        if size < 200:  # hodně hrubé
+            raise SystemExit(f"Dump je podezřele malý ({size} B) – něco je špatně.")
+
+        # Retence
+        cutoff = datetime.now() - timedelta(days=keep_days)
+        for f in backup_dir.glob("kanboard_*_*.sql.gz"):
+            try:
+                if datetime.fromtimestamp(f.stat().st_mtime) < cutoff:
+                    f.unlink(missing_ok=True)
+            except Exception:
+                pass
+
+        print(f"[OK] Hotovo. Velikost: {size/1024/1024:.2f} MB")
+
+    finally:
+        try:
+            cnf_path.unlink(missing_ok=True)
+        except Exception:
+            pass
+
+if __name__ == "__main__":
+    main()
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