I am also having an issue installing the app, but in Linux Mint
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Fatal error: Warm-up error: while installing: htfs connect: Get https://broth.itch.ovh/itch/linux-amd64/25.4.0/archive/default?downloadSessionId=9aaf0519-f3d8-4d9a-8437-874cec79da2d: unexpected EOF
"