Just to let you know that Syno's also support PostgreSQL, if your application cant be ported to MySQL maybe it might run on Postgres. In theory if your app. is ANSI SQL compliant it should port across.
* Model: RS-810+ * Firmware: 4.1-2567
* Model: DS-209+ * Firmware: 4.2-3246
* Modification(s) DS-209+ RAM 1Gb / RS810 RAM 3Gb / +Optware
* Drives Seagate DS209+: 2x ST31500341AS / RS810: 3x ST3000VN000-1H41.
* Network: 1000xBASE T, Full duplex. [Bonded on 810+]
* Services enabled: Most of them!