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Do you take after your dad's RNA? (11 minute read)
Sperm may be more than just vessels for DNA. Scientists have detected microRNAs and other types of RNA fragments in sperm cells that respond to various environmental factors, such as stress, exercise, and mental health. There is mounting evidence that sperm may be transmitting environmental information to offspring. There are many unanswered questions that scientists are still exploring, but there is enough evidence to rebalance parental responsibility.
May 11 | Data
Flowfile (GitHub Repo)
Flowfile is a visual ETL tool built around Polars. Design pipelines on a drag-and-drop canvas, or define them in Python with a Polars-like API. Visual workflows can export to standalone Python/Polars code, avoiding classic low-code lock-in. It also includes a Delta-backed catalog, SQL editor, scheduler, parameters, and sandboxed Python kernels.
May 08 | AI
Improving token efficiency in GitHub Agentic Workflows (12 minute read)
GitHub Agent Workflows significantly improve repository hygiene and quality, but costs are becoming a growing concern for developers. AI jobs like agentic workflows are automatically scheduled and triggered, so costs can accumulate out of view. GitHub started systematically optimizing the token usage of many workflows last month. This post describes what the team instrumented, the optimizations it applied, and its preliminary results.
May 08 | It
The AWS MCP Server is now generally available (5 minute read)
AWS' managed MCP Server enables AI agents to securely access AWS services using authenticated IAM credentials. The tool provides real-time documentation retrieval, sandboxed Python script execution, and curated skills to improve agent accuracy. It integrates with MCP-compatible clients like Claude Code, Cursor, and Kiro for production-ready infrastructure management.
