Migrate to SLNX

[0x5bfa]

As the title describes, the only and yet the biggest benefit gaining from SLNX is simplicity.

Please let me know your thoughts; if you guys are fine with this change, I'd like to work on.

[marcelwgn]

Thank you for making this suggestion! While I think we should try to use newest feature, in the case of slnx we want to wait until the feature is out of preview.