Contributor

Willy Lulciuc ( @wslulciuc ) is a pioneer in data engineering and one of the creators of OpenLineage, the open-source framework for data lineage collection and analysis. It enables consistent collection of lineage metadata, giving engineers a better perspective on how data is produced and used, so they can better solve complex problems. Join us to learn about the evolution of data processing, the...

Andrew Smith (Github: @asmith-plainsight ) dives deep into OpenFilter, the open-source framework for building computer vision workflows. Andrew is the CTO of Plainsight which is a leader in modern computer vision infrastructure. Tune in to find out how OpenFilter is simplifying and revolutionizing computer vision applications. Subscribe to Contributor on Substack for email notifications! In this e...

Pete Hunt ( @floydophone ) joins Eric Anderson ( @ericmander ) to talk about Dagster, the open-source data orchestration platform built for productivity. In 2021, Eric interviewed Dagster’s founder, Nick Schrock, about an earlier iteration of the product. Now, four years later, Pete has become the CEO of Dagster Labs and has all the updates on how this platform has changed along with the industry...

Mark Fussell ( @mfussell ) is the co-creator of Dapr, the open-source runtime system designed to support cloud native and serverless computing. Dapr provides APIs that simplify the development of distributed applications, providing essential functionalities like service invocation, pub/sub messaging, and observability.  Subscribe to Contributor on Substack for email notifications! In this episode...

Kee Jefferys ( @JefferysKee ) is the technical co-founder of Session, the end-to-end encrypted messenger that emphasizes user confidentiality and anonymity. Session uses a blockchain-based decentralized network for message transmission and is open-source, so the system can be run entirely by its community. In this episode, Kee explains the importance of reducing metadata, the challenges of central...

Clément Salaün ( @superzamp ) is the co-founder and CTO of Formance, the open-source platform which is building an agnostic infrastructure for the future of the financial Internet. Formance is divided into several modules which allow fintech engineers to build and operate complex flow of funds, weaving together multiple payment rails with internal ledger accounts. Tune in to find out what it takes...

Gideon Mendels (Github: @gidim ) is the co-founder and CEO of Comet, the end-to-end model evaluation platform for AI developers. Among the tools in the Comet ecosystem is Opik, an open-source solution for evaluating, testing and monitoring LLM applications. Opik allows users to log traces and spans, define and compute evaluation metrics, score LLM outputs, compare performance across app versions,...

Hanson Ho ( @bidetofevil ) is an Android Architect at Embrace, the mobile-first observability solution built on OpenTelemetry. Embrace began as a proprietary platform but went open-source at the end of 2023. Hanson shares about how the project is still at the beginning of its open-source journey and why his team is committed to collaborative development with the larger community of OpenTelemetry....

Stephan Ewen ( @StephanEwen ) is the co-founder of Restate, the open-source workflow-as-code engine. Restate is lightweight, simple, and provides durable execution. Before Restate, Stephan co-created Apache Flink, the open-source stream processing framework. Lessons learned from Flink have heavily influenced the development of Restate, although Stephan says they have exact opposite use cases. Cont...

Eyal Solomon ( @EyalSolomo44643 ) is the CEO and co-founder of Lunar, an open-source platform which bills itself as the “first reverse API gateway.” Lunar allows engineering teams to monitor, manage, and optimize API consumption. According to Eyal, it’s very easy to integrate with APIs, but difficult to keep them maintained, and there was a clear need for a generic solution to control and scale ev...

Shirshanka Das ( @shirshanka ) is the CTO of Acryl Data and founder of DataHub, which bills itself as the #1 open-source metadata platform. It enables data discovery, data observability and federated governance to help tame complex data ecosystems. Shirshanka first developed DataHub while at LinkedIn, but has grown it into an independent project with a thriving community. Contributor is looking fo...

After his first child was born, Matt Wonlaw ( @tantaman ) imagined giving his son life advice. What kind of life did he want his kid to lead? At the time, he was working for Facebook, and he decided that his own life needed a change in direction. So Matt started vlcn, aka Vulcan Labs, a research company that develops open-source projects like CR-SQLite and Materialite. vlcn has an unusual business...

Amplication is an open-source development platform for scalable and secure Node.js applications. It allows engineers to skip writing boilerplate code and offers the flexibility to customize and add components. Amplification was created by Yuval Hazaz ( @Yuvalhazaz1 ), a veteran developer who determined that low-code platforms save time but restrict freedom. Instead, Amplication uses code generatio...

OpenBB is an open-source investment research platform created by Didier Lopes ( @didier_lopes ). OpenBB grew out of a project called Gamestonk Terminal that Didier began working on shortly before the Gamestop short squeeze in January 2021. Today, OpenBB has evolved into an infrastructure platform that allows users to build extensions and access financial data with automation and customization. Con...

OpenTelemetry is an open-source observability framework for collecting and managing telemetry data. OpenTelemetry has been more successful than expected, becoming the second fastest growing project in the CNCF. It allows for flexibility and avoids vendor lock-in, making it attractive to startups and large enterprises alike. On today’s show, Eric ( @ericmander ) sits down with Austin Parker ( @aust...

OPAL is an open-source administration layer for Policy Engines such as Open Policy Agent (OPA). OPAL provides the necessary infrastructure to load policy and data into multiple policy engines, ensuring they have the information they need to make decisions. Today, we’re talking to Or Weis ( @OrWeis ), co-creator of OPAL and co-founder of Permit, the end-to-end authorization platform that envisions...

FerretDB enables users to run MongoDB applications on existing Postgres infrastructure. Peter Farkas ( @FarkasP ), co-founder and CEO of FerretDB, explains the need for an open source interface for document databases. Peter also discusses the licensing change of MongoDB and the uncertainty it created for users. He emphasizes the importance of open standards and collaboration among MongoDB alternat...

Ben Johnson ( @benbjohnson ) is the creator of Litestream and LiteFS, two open-source disaster recovery solution for SQLite. Litestream is designed to provide continuous backups for SQLite databases by streaming incremental changes, allowing for easy data recovery in the event of a server crash. LiteFS, on the other hand, is built on LiteStream but uses transactional control to focus on replicatio...

Tonic is a native gRPC implementation in Rust that allows users to easily build gRPC servers and clients without extensive async experience. Tonic is part of the Tokio stack, which is a library that provides an asynchronous runtime for Rust and more tools to write async applications. Today, Lucio Franco ( @lucio_d_franco ) of Turso joins the podcast to discuss his unique experience maintaining Ton...

rqlite is a lightweight, distributed relational database built on Raft and SQLite. Founder Philip O’Toole ( @general_order24 ) decided to combine these technologies while working at a startup years ago. The startup no longer exists, but rqlite is going strong. Today, Philip is an engineering manager at Google, while he continues to be the driving force behind the open development of rqlite. Contri...

Kuba Martin ( @cube2222_2 ) is Software Engineering Team Lead at Spacelift and Interim Tech Lead of OpenTofu, the open-source fork of Terraform. Terraform is a declarative infrastructure-as-code (IaC) tool that recently switched to a source-available license. Spacelift and other companies that heavily relied on Terraform came together to fork it into a community-driven project originally called Op...

Ry Walker ( @rywalker ) is the founder and CEO of Tembo, the Postgres developer platform for building any and every data service. To Ry, the full capabilities of Postgres appear underappreciated and underused for most users. Tembo is an attempt to harness the large ecosystem of Postgres extensions, and ultimately collapse the database sprawl of the modern data stack.  Contributor is looking for a...

Jan Oberhauser ( @JanOberhauser ) is the founder and CEO of n8n, the free and source-available workflow automation tool for technical users. n8n's flexible architecture allows users to avoid the limitations of other automation tools, while also opening doors for complex automation scenarios. The project has garnered over 30,000 GitHub stars and a thriving community of 55,000+ members. Subscrib...

Glauber Costa ( @glcst ) is the founder of Turso and the co-creator of libSQL, an open source, open contribution fork of the database engine library, SQLite. Most people believe that SQLite is open-source software, but it actually exists in the public domain and doesn’t accept external contributions. With their big fork, Glauber and his team have set out to evolve SQLite into a modern database wit...

Ruben Fiszel ( @rubenfiszel ) is the creator of Windmill, the open-source developer platform that lets users easily turn scripts into workflows and internal apps with auto-generated UIs. Windmill doesn’t force engineers to change their coding style or adopt a convoluted API, and its low-code design makes it accessible to non-technical users. Tune in to find out how Windmill offers speed, performan...