Plain Schwarz

We are event professionals driven by a passion for empowering those committed to the goal of an open and free society. Specialising in working with Open Source and Free Software communities we are proud non-code committers to the wider ecosystem. Our services include full-service event management, ticketing & registration, online events, event conception, program coordination and more.

We help small and large companies, communities and institutions to bring people together. By taking away the effort of doing all the necessary but annoying tasks, we allow them to focus on what’s important. Bringing in our experience as organizers of successful events in the Open Source and Free Software space, we aim to make your event shine and stand out.


Impressum:
Plain Schwarz UG
Schönhauser Allee 6-7
10119 Berlin
T | +49 30 202 371 438
M| info [at] plainschwarz.com

Geschäftsführung: Paul Berschick
Ust-IdNr. DE323208868

Registergericht: AG Charlottenburg
Registernummer: HRB 205726 B

Nikolay Sivko – Delay accounting: an underrated feature of the Linux kernel #bbuzz
Nikolay Sivko – Delay accounting: an underrated feature of the Linux kernel #bbuzz
Kevin Liang – Performance Tuning Apache Solr for Dense Vectors #bbuzz
Kevin Liang – Performance Tuning Apache Solr for Dense Vectors #bbuzz
Tom Scott, Roman Kolesnev – Melting Icebergs: Direct access to Kafka Data via Iceberg #bbuzz
Tom Scott, Roman Kolesnev – Melting Icebergs: Direct access to Kafka Data via Iceberg #bbuzz
Bilge Yücel – Go Beyond Basic RAG with Agentic Behavior #bbuzz
Bilge Yücel – Go Beyond Basic RAG with Agentic Behavior #bbuzz
Atri Sharma, Abhishek Singh – Cross Domain Enterprise Search - Content Diversity at Scale #bbuzz
Atri Sharma, Abhishek Singh – Cross Domain Enterprise Search - Content Diversity at Scale #bbuzz
Dhrubo Saha – Advancing Multi-Modal Search Capabilities in Search Pipeline #bbuzz
Dhrubo Saha – Advancing Multi-Modal Search Capabilities in Search Pipeline #bbuzz
Steffen Hoellinger – Flink Jobs as Agents – Stream Processing for Agentic AI #bbuzz
Steffen Hoellinger – Flink Jobs as Agents – Stream Processing for Agentic AI #bbuzz
Sonam Pankaj – Text Search on Images with Quantized ColPali #bbuzz
Sonam Pankaj – Text Search on Images with Quantized ColPali #bbuzz
Ved Prakash – Siphon : Modern Data Stack with SF-CH & Iceberg #bbuzz
Ved Prakash – Siphon : Modern Data Stack with SF-CH & Iceberg #bbuzz
Isaac Chung – Reproducibility in Embedding Benchmarks #bbuzz
Isaac Chung – Reproducibility in Embedding Benchmarks #bbuzz
Lars Albertsson – All the DataOps, all the paradigms #bbuzz
Lars Albertsson – All the DataOps, all the paradigms #bbuzz
Frank Munz – Analysing Public Kafka Data from NASA Satellites #bbuzz
Frank Munz – Analysing Public Kafka Data from NASA Satellites #bbuzz
Ivan Dolgov – How to train a fast LLM for coding tasks #bbuzz
Ivan Dolgov – How to train a fast LLM for coding tasks #bbuzz
Isabelle Mohr, Saba Sturua – Visual Literacy: Complex Document Retrieval with VLMs #bbuzz
Isabelle Mohr, Saba Sturua – Visual Literacy: Complex Document Retrieval with VLMs #bbuzz
Lewin von Saldern – Why Chatbots Still Fail: The Hidden Pitfalls of RAG #bbuzz
Lewin von Saldern – Why Chatbots Still Fail: The Hidden Pitfalls of RAG #bbuzz
Olena Kutsenko – Mastering real-time anomaly detection with open source tools #bbuzz
Olena Kutsenko – Mastering real-time anomaly detection with open source tools #bbuzz
Stavros Macrakis, Eric Pugh – Streamlining Search Quality: Search Relevance Workbench #bbuzz
Stavros Macrakis, Eric Pugh – Streamlining Search Quality: Search Relevance Workbench #bbuzz
Filip Makraduli, Ben Gutkovich – Mixture of Encoders: A Vector-Native Approach to Search #bbuzz
Filip Makraduli, Ben Gutkovich – Mixture of Encoders: A Vector-Native Approach to Search #bbuzz
Radu Gheorghe, Rafał Kuć – Which GPU for Local LLMs? #bbuzz
Radu Gheorghe, Rafał Kuć – Which GPU for Local LLMs? #bbuzz
Aline Blankertz – Unpacking Digital Sovereignty: How to avoid fueling the nationalist rise #bbuzz
Aline Blankertz – Unpacking Digital Sovereignty: How to avoid fueling the nationalist rise #bbuzz
Gülçin Yıldırım Jelinek – Anatomy of Table-Level Locks in PostgreSQL #bbuzz
Gülçin Yıldırım Jelinek – Anatomy of Table-Level Locks in PostgreSQL #bbuzz
What you see is what you mean; intent based ecommerce search #bbuzz
What you see is what you mean; intent based ecommerce search #bbuzz
Guy Shtub – Performance & Fault Tolerance: Building a Modern Database #bbuzz
Guy Shtub – Performance & Fault Tolerance: Building a Modern Database #bbuzz
Nick Burch – Self-hosting AI LLMs - a beginners guide #bbuzz
Nick Burch – Self-hosting AI LLMs - a beginners guide #bbuzz
Zero to Scale: Telemetry pipeline with Apache Cassandra #bbuzz
Zero to Scale: Telemetry pipeline with Apache Cassandra #bbuzz
AI-Powered Search Results Navigation with LLMs & JSON Schema #bbuzz
AI-Powered Search Results Navigation with LLMs & JSON Schema #bbuzz
Uwe Schindler – State of native access in Apache Lucene #bbuzz
Uwe Schindler – State of native access in Apache Lucene #bbuzz
Javier Ramirez – Accelerating QuestDB: Lessons from a 6x Performance Boost #bbuzz
Javier Ramirez – Accelerating QuestDB: Lessons from a 6x Performance Boost #bbuzz
Miloš Sutanovac – Going Local-First: A Primer #bbuzz
Miloš Sutanovac – Going Local-First: A Primer #bbuzz
Danica Fine – Quiet on Set: Building an On-Air Sign with Open Source Tech #bbuzz
Danica Fine – Quiet on Set: Building an On-Air Sign with Open Source Tech #bbuzz