My thoughts written in digital ink.https://kostasp.net/https://kostasp.net/#kv-caches-again/https://kostasp.net/#kv-caches-again/[Note] KV Caches againMon, 26 Jan 2026 22:22:00 GMThttps://kostasp.net/#claude-code-plugins-as-mv-ps/https://kostasp.net/#claude-code-plugins-as-mv-ps/[Note] Claude Code Plugins as MVPsWed, 14 Jan 2026 15:41:00 GMThttps://kostasp.net/#anthropic-s-cowork/https://kostasp.net/#anthropic-s-cowork/[Note] Anthropic's CoworkTue, 13 Jan 2026 00:00:00 GMThttps://kostasp.net/#keystatic-for-cms/https://kostasp.net/#keystatic-for-cms/[Note] Keystatic for CMSTue, 13 Jan 2026 00:00:00 GMThttps://kostasp.net/posts/why-i-started-typedef/https://kostasp.net/posts/why-i-started-typedef/Two years ago I started working on something new based on a strong conviction that data was about to become exponentially more important. We built Typedef, an AI-native data engine that unifies inference, search, and data processing into a single system.Wed, 18 Jun 2025 00:00:00 GMThttps://kostasp.net/posts/snowflake-dbt-licensing/https://kostasp.net/posts/snowflake-dbt-licensing/Snowflake's 2025 keynote announcement regarding dbt Core clarifies dbt Labs' controversial shift to change dbt Fusion's licensing model. This represents a rational business response to market dynamics.Fri, 13 Jun 2025 00:00:00 GMThttps://kostasp.net/posts/cortex-aisql/https://kostasp.net/posts/cortex-aisql/Snowflake's Cortex AISQL represents a paradigm shift in integrating large language models into data systems as structured, composable functions rather than opaque tools.Wed, 04 Jun 2025 00:00:00 GMThttps://kostasp.net/posts/synthetic-data-pipeline/https://kostasp.net/posts/synthetic-data-pipeline/A comprehensive approach to building scalable, composable pipelines for generating synthetic training data using Large Language Models, specifically focusing on creating question-answer pairs from documents.Sat, 31 May 2025 00:00:00 GMThttps://kostasp.net/posts/exploring-synthetic-data/https://kostasp.net/posts/exploring-synthetic-data/How synthetic data is used to train and fine-tune large language models, with a focus on Meta's open-source synthetic-data-kit.Mon, 26 May 2025 00:00:00 GMThttps://kostasp.net/posts/meta-synthetic-data-kit/https://kostasp.net/posts/meta-synthetic-data-kit/A deep dive into Meta's synthetic-data-kit architecture, a toolkit designed to generate high-quality synthetic datasets for fine-tuning Large Language Models.Thu, 15 May 2025 00:00:00 GMThttps://kostasp.net/posts/dxvsux/https://kostasp.net/posts/dxvsux/The differences and similarities of DX and UX.Thu, 05 Sep 2024 00:00:00 GMThttps://kostasp.net/posts/datafusion/https://kostasp.net/posts/datafusion/Why Apache DataFusion is one of the most important open source projects right now.Mon, 01 Jul 2024 00:00:00 GMThttps://kostasp.net/posts/veloxcon/https://kostasp.net/posts/veloxcon/Learn about the latest advancements in execution engines and data processing at scale from the recent VeloxCon conference in San Jose.Tue, 30 Apr 2024 00:00:00 GMThttps://kostasp.net/posts/MLOps_is_Mostly_Data_Engineering/https://kostasp.net/posts/MLOps_is_Mostly_Data_Engineering/The overlap between MLOps and Data EngineeringWed, 22 Mar 2023 00:00:00 GMThttps://kostasp.net/posts/sql_window_functions_tutorial/https://kostasp.net/posts/sql_window_functions_tutorial/Frames, and SQL Window Functions. A tutorial on SQL Window Functions using DuckDB.Wed, 15 Mar 2023 00:00:00 GMThttps://kostasp.net/posts/api_economy/https://kostasp.net/posts/api_economy/New Opportunities in the API Economy.Thu, 23 Feb 2023 00:00:00 GMThttps://kostasp.net/posts/guide_to_sql_dates_with_duckdb/https://kostasp.net/posts/guide_to_sql_dates_with_duckdb/Working with Dates in SQL, with examples in DuckDB.Wed, 22 Feb 2023 00:00:00 GMThttps://kostasp.net/posts/sql_timestamp/https://kostasp.net/posts/sql_timestamp/Working with Date and Time Types in SQL.Thu, 09 Feb 2023 00:00:00 GMThttps://kostasp.net/posts/trino-internals-parametric-timestamps/https://kostasp.net/posts/trino-internals-parametric-timestamps/How to add a new data type in Trino.Sat, 28 Jan 2023 00:00:00 GMThttps://kostasp.net/posts/snowflake-streaming/https://kostasp.net/posts/snowflake-streaming/How Streaming Data Can be Ingested in Snowflake.Mon, 23 Jan 2023 00:00:00 GMThttps://kostasp.net/posts/how_snowflake_pricing_works/https://kostasp.net/posts/how_snowflake_pricing_works/Introduction to how Snowflake's pricing works.Fri, 05 Aug 2022 00:00:00 GMThttps://kostasp.net/posts/introduction_to_data_observability/https://kostasp.net/posts/introduction_to_data_observability/What's Data Observability and why it matters?Mon, 27 Jun 2022 00:00:00 GMThttps://kostasp.net/posts/starting_and_growing_a_podcast/https://kostasp.net/posts/starting_and_growing_a_podcast/My experience with the Data Stack ShowThu, 19 May 2022 00:00:00 GMThttps://kostasp.net/posts/standard/https://kostasp.net/posts/standard/What Airbyte, Singer and Kafka Connect have in commonMon, 31 Jan 2022 00:00:00 GMThttps://kostasp.net/posts/the_battle_of_the_data_platform/https://kostasp.net/posts/the_battle_of_the_data_platform/Snowflake vs DatabricksTue, 18 May 2021 00:00:00 GMT