This just runs SMAPI silently without the console, nothing fancy in the slightest.

Instructions:

• Put 'SilentSmapi.exe' in your main Stardew Directory along side Smapi.
• Set your launch options in steam for Stardew point to the Silent Smapi executable (e.g: "f:\software\steam\steamapps\common\Stardew Valley\SilentSmapi.exe" %command%)

Virus Total Report (possible AV false positives, because it's running an exe hidden): https://www.virustotal.com/gui/file/febb30a9db3ffa2895f7ccbf55b60b53628f3052c997f96e0faeeda04165a04e?nocache=1