Smilyzip (ULTIMATE 2027)

: A feature that automatically detects file types and applies the best compression ratio (e.g., using LZMA or Deflate64 ).

If Smilyzip is a "fun" consumer-facing app (like a custom zip-lock screen):

: A tool that "zips" all guest communication, booking history, and receipts into a neat package for tax or insurance purposes at the end of a stay.

If Smilyzip is a tool for managing archives, consider these high-value features: