How do i get experience using data science tools, without previous employment?

It seems like most jobs applying for, whether data analyst or data science roles, require some level of experience with anything Apache (Beam, Airflow, etc), warehousing tools, Terraform, AWS, etc.

I've experience with common programming languages like Python, JS, and SQL, worked with Tableau too, but how would i develop a portfolio/project with the tech stack most companies are asking for?

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