syntax error running openframe

[quinkennedy]

looks like one of the dependencies is using newer language features.

• Raspberry PI 3 B+
• Raspbian "Debian GNU/Linux 12 (bookworm)"
• Installed via install script

$ openframe
/home/quinkennedy/.nvm/versions/node/v6.9.5/lib/node_modules/openframe/node_modules/tough-cookie/dist/memstore.js:30
        const result = this.idx[domain]?.[path]?.[key];
                                        ^
SyntaxError: Unexpected token .
    at Object.exports.runInThisContext (vm.js:76:16)
    at Module._compile (module.js:542:28)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/home/quinkennedy/.nvm/versions/node/v6.9.5/lib/node_modules/openframe/node_modules/tough-cookie/dist/cookie/index.js:6:18)
    at Module._compile (module.js:570:32)

[quinkennedy]

anyone have a package-lock file they could provide to ensure I get the correct versions of the various dependencies?