Explores profunctors in category theory, defining them as heteromorphisms between categories and their role in a double category combining functors and profunctors.
Daily tech news roundup covering AI, .NET, web development, and Microsoft tools for April 24, 2026.
DeepSeek V4 preview models offer frontier-level performance at a fraction of the cost, with up to 1M token context and open weights.
DeepSeek releases V4 Pro and Flash AI models, offering frontier-level performance at significantly lower costs.
A tool to convert milliseconds to seconds and minutes, created by Simon Willison to simplify LLM prompt duration conversions.
A tool to convert milliseconds to seconds and minutes, created by Simon Willison for LLM report durations.
Simon Willison's newsletter summary featuring tech posts on DeepSeek V4, LiteParse, and Agentic Engineering patterns.
Honker implements Postgres NOTIFY/LISTEN semantics for SQLite, enabling queues and streams with transactional outbox pattern.
Honker is a Rust SQLite extension implementing Postgres NOTIFY/LISTEN semantics for queues and streams.
Anthropic's postmortem on Claude Code quality issues reveals three bugs in the harness causing forgetfulness and repetition.
Anthropic's postmortem on Claude Code quality issues reveals three bugs affecting user sessions, including a memory-clearing bug causing forgetfulness.
How a single Go process on a gaming PC powers Bluesky's For You feed with SQLite and Tailscale.
How a single Go process on a gaming PC powers Bluesky's For You feed for 72,000 users using SQLite and Tailscale.
Explores an alternative microservices pattern: deploying the same service codebase across multiple platforms for local ownership and resilience.
A mathematical approximation for solving oblique triangles without inverse trig functions, with Python code example.
Thomas Maurer announces his speaking session on Sovereign Private Cloud with Azure Local at Microsoft Sovereignty Day Madrid 2026.
Explores the ethical dilemma of using knowledge obtained through unethical means, applying it to technology and engineering.
Summary of top developer links for April 23, 2026, covering AI agents, .NET, web dev, security, and Windows development.
ClockTray v1.0.0 is a dual-mode Windows utility with GUI and CLI for controlling the taskbar clock, featuring automation and lunar calendar overlay.
Reflecting on the CSS Anthology book from 2004 and imagining what a 2026 edition covering modern CSS would look like.
