I didn't know about backports, and it sounded promising, but ultimately that didn't achieve the desired effect.Can you not use bookworm-backports version?
Code:
$ curl --http3 --head https://localhost:443curl: option --http3: the installed libcurl version doesn't support thiscurl: try 'curl --help' or 'curl --manual' for more information$ curl --versioncurl 8.8.0 (x86_64-pc-linux-gnu) libcurl/8.8.0 OpenSSL/3.0.13 zlib/1.2.13 brotli/1.0.9 zstd/1.5.4 libidn2/2.3.3 libpsl/0.21.2 libssh2/1.10.0 nghttp2/1.52.0 librtmp/2.3 OpenLDAP/2.5.13Release-Date: 2024-05-22, security patched: 8.8.0-1~bpo12+1Protocols: dict file ftp ftps gopher gophers http https imap imaps ipfs ipns ldap ldaps mqtt pop3 pop3s rtmp rtsp scp sftp smb smbs smtp smtps telnet tftpFeatures: alt-svc AsynchDNS brotli GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM PSL SPNEGO SSL threadsafe TLS-SRP UnixSockets zstdStatistics: Posted by r00tb33r — 2024-08-13 22:31