Convert v2ray config.json (client side) to a subscription content

convert.sh

#!/bin/bash

# brew install jq
# brew install qrencode

config_file=v2rayx*.json
rss_file=rss.txt

cat $config_file | \
  jq --raw-output '
    def cred:
      "\(.settings.vnext[0].users[0].security):\(.settings.vnext[0].users[0].id)@\(.settings.vnext[0].address):\(.settings.vnext[0].port)"
    ;
    def header_host:
      (.streamSettings.wsSettings.headers // {}) as $h |
      ($h | to_entries | map(select(.key|ascii_downcase == "host")) | .[0]?.value)
    ;
    def network:
      if .streamSettings.network == "ws" then
        ("path=\(.streamSettings.wsSettings.path)&obfs=websocket"
         + (header_host as $host | if $host then "&obfsParam=\($host)" else "" end))
      else
        "obfs=none"
      end
    ;
    def tls:
      if .streamSettings.security == "tls" then
        "tls=1&peer=\(.streamSettings.tlsSettings.serverName)"
      else
        "tls=0"
      end
    ;
    def mux:
      if .mux?.enabled? then "mux=1" else "mux=0" end
    ;
    def alterid:
      "\(.settings.vnext[0].users[0].alterId)"
    ;
    .outbounds | map(select(.protocol == "vmess")) | .[] |
      cred as $cred |
      network as $network |
      tls as $tls |
      mux as $mux |
      alterid as $alterid |
      { cred: $cred, remarks: .tag, network: $network, tls: $tls, mux: $mux, alterid: $alterid } |
      .cred = @base64 "\(.cred)" | .remarks = @uri "\(.remarks)" |
      "vmess://\(.cred)?remarks=\(.remarks)&\(.network)&\(.tls)&\(.mux)&alterId=\(.alterid)"' | \
  base64 > $rss_file

# put $rss_file to somewhere, then your qr code for the subscribe link is
rss_url="https://yourserver/rss.txt"
qrencode -t ANSI $(echo "sub://$(echo "$rss_url" | base64)")

@mulezic OK, I understand. You can tell me what server software or script you are using, what client you are planning to use, and also a sample json config (without sensitive information). I can help you determine the feasibility of the situation.