The data integration industry has evolved significantly over the past 16 years, with new open-source projects like Singer.io emerging alongside commercial software solutions such as Snowflake, Bigquery, and Redshift. While companies like Fivetran have made it easier for non-engineering teams to set up and manage data integration connectors, many teams still build their own connectors in-house. This article explores the landscape of open-source data integration technologies, focusing on projects such as Singer, Airbyte, PipelineWise, and Meltano. It also highlights related noteworthy open-source projects like Apache Airflow, DBT, and Apache Camel. The analysis aims to provide a comprehensive overview of the current state of open-source data integration alternatives and their potential impact on the industry.