HI
Ok thanks I find this method interesting and original, but I have an error message
python3 Electrum-4.4.2/run_electrum
Error: Failed to load libsecp256k1.
0.48 | E | ecc_fast | libsecp256k1 library failed to load
Have you installed the dependencies first as it's a first step from Electrum?
sudo apt-get install python3-pyqt5 libsecp256k1-dev python3-cryptography
If you did but this error still comes up then try to install libsecp256k1 manually with this alternative here below
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https://github.com/spesmilo/electrum-docs/blob/master/libsecp256k1-linux.rstAbout your 2nd question, no one has done it yet here because you can run Electrum without extracting it or making a portable one.
But if you still insist why not bring your question to their GitHub page here below they might be able to help you.
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https://github.com/spesmilo/electrum-docs/issues