Errors while building... missing "watch" script when run

[paulsybrandy]

Due to your very well instructed tutorial, I had no issues setting the databases up. However, when running npm install, a bunch of errors popped up:

npm WARN old lockfile
npm WARN old lockfile The package-lock.json file was created with an old version of npm,
npm WARN old lockfile so supplemental metadata must be fetched from the registry.
npm WARN old lockfile
npm WARN old lockfile This is a one-time fix-up, please be patient...
npm WARN old lockfile
npm WARN EBADENGINE Unsupported engine {
npm WARN EBADENGINE   package: 'notion-feed-reader@1.0.0',
npm WARN EBADENGINE   required: { node: '>=10.16.0 <=14.x.x', npm: '>=6.0.0' },
npm WARN EBADENGINE   current: { node: 'v18.17.1', npm: '9.6.7' }
npm WARN EBADENGINE }
npm WARN deprecated @babel/plugin-proposal-private-methods@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-private-methods instead.
npm WARN deprecated @babel/plugin-proposal-optional-catch-binding@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-optional-catch-binding instead.
npm WARN deprecated @babel/plugin-proposal-numeric-separator@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-numeric-separator instead.
npm WARN deprecated @babel/plugin-proposal-json-strings@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-json-strings instead.
npm WARN deprecated @babel/plugin-proposal-logical-assignment-operators@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-logical-assignment-operators instead.
npm WARN deprecated @babel/plugin-proposal-unicode-property-regex@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-unicode-property-regex instead.
npm WARN deprecated @babel/plugin-proposal-class-static-block@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-class-static-block instead.
npm WARN deprecated @babel/plugin-proposal-class-properties@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-class-properties instead.
npm WARN deprecated @babel/plugin-proposal-dynamic-import@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-dynamic-import instead.
npm WARN deprecated @babel/plugin-proposal-nullish-coalescing-operator@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-nullish-coalescing-operator instead.
npm WARN deprecated @babel/plugin-proposal-export-namespace-from@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-export-namespace-from instead.
npm WARN deprecated @babel/plugin-proposal-private-property-in-object@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-private-property-in-object instead.
npm WARN deprecated @babel/plugin-proposal-async-generator-functions@7.16.4: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-async-generator-functions instead.
npm WARN deprecated @babel/plugin-proposal-object-rest-spread@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-object-rest-spread instead.
npm WARN deprecated @babel/plugin-proposal-optional-chaining@7.16.0: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-optional-chaining instead.

added 533 packages, and audited 534 packages in 5m

106 packages are looking for funding
  run `npm fund` for details

13 vulnerabilities (5 moderate, 4 high, 4 critical)

To address all issues, run:
  npm audit fix

Run `npm audit` for details.
npm notice
npm notice New major version of npm available! 9.6.7 -> 10.2.5
npm notice Changelog: https://github.com/npm/cli/releases/tag/v10.2.5
npm notice Run npm install -g npm@10.2.5 to update!
npm notice

...and when attempting to run npm run watch, it states:

npm ERR! Missing script: "watch"
npm ERR!
npm ERR! To see a list of scripts, run:
npm ERR!   npm run

npm ERR! A complete log of this run can be found in: C:\Users\pauln\AppData\Local\npm-cache\_logs\2023-12-29T16_28_33_713Z-debug-0.log

Unsure what happened here. I did run npm audit fix as well as npm install -g npm@10.2.5 to upgrade npm, but same issues when trying to run.

Any words of wisdom?