I am not sure if it would even be possible, but Wireshark would be a great app to have.
New: Nemp (Jul 20, 2026), Platform 30.4.2 (Jul 07, 2026)
1,400+ portable packages, 1.2 billion downloads
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Wireshark hosts their own Portable apped version here:
https://www.wireshark.org/download.html