Jekyll with TinaCMS build Issue in Vercel.. "Jekyll command not found"

My Repo: GitHub - trim-leng/

My Script(package.json) were running properly in Local …

 "scripts": {
    "dev": "tinacms dev -c \"bundle exec jekyll serve\"",
    "build": "tinacms build && jekyll build"

while deploying through Vercel Facing issue with

[09:57:28.968] sh: jekyll: command not found
[09:57:28.968] Error: Command "npm run build" exited with 127

sounds like jekyll is not installed on whatever image vercel is trying to run on - have you specified what image you want somewhere? maybe you need to add a step to install jekyll and maybe ruby?

probably need to check with vercel support on this as it is going to be on their end.