Portfolio and blog posts mostly about technical thingshttps://ersteiger.com/https://ersteiger.com/posts/clerk-cli-auth/https://ersteiger.com/posts/clerk-cli-auth/A step-by-step guide to wiring Clerk’s polished web flows into a headless Rust CLI so users can `mycli auth login`, grab a long-lived JWT, and hit protected endpoints without sacrificing security or sanity.Thu, 17 Jul 2025 00:00:00 GMThttps://ersteiger.com/posts/european-incentives/https://ersteiger.com/posts/european-incentives/From our phones to our cloud services, Europe depends on American tech. Here's why our brightest minds keep choosing Silicon Valley over Stuttgart - and what we can do about it.Tue, 17 Jun 2025 00:00:00 GMThttps://ersteiger.com/posts/linear-attention-part-1/https://ersteiger.com/posts/linear-attention-part-1/Showing that softmax attention and other sub-quadratic models (linear attention, SSMs, etc.) belong to the same class of models that differ in how they store, optimize, and forget memories.Sun, 26 Apr 2026 00:00:00 GMThttps://ersteiger.com/posts/linear-attention-part-2/https://ersteiger.com/posts/linear-attention-part-2/From TTT and Titans to the four axes of MIRAS — reframing the hidden state as a tiny model trained online, and placing every modern sub-quadratic architecture (DeltaNet, Mamba2, Gated DeltaNet, TTT, Titans, KDA, ATLAS) on four design choices.Fri, 01 May 2026 00:00:00 GMThttps://ersteiger.com/posts/linear-attention-part-3/https://ersteiger.com/posts/linear-attention-part-3/Why per-token recurrences are slow on GPUs, how chunkwise DeltaNet uses the WY representation, and how MQAR shows empirically the improvements of delta rule and gating in fixed-state recurrences.Sat, 16 May 2026 00:00:00 GMThttps://ersteiger.com/posts/papermake-registry/https://ersteiger.com/posts/papermake-registry/Escaping CrystalReport. Reinventing PDF Stack and Building Docker Hub for Typst Templates on the way.Wed, 02 Jul 2025 00:00:00 GMThttps://ersteiger.com/posts/proxying-plausible/https://ersteiger.com/posts/proxying-plausible/Tue, 20 May 2025 00:00:00 GMThttps://ersteiger.com/posts/rendering-one-million-pdfs/https://ersteiger.com/posts/rendering-one-million-pdfs/How to build a modern and scalable PDF rendering service using AWS Lambda.Mon, 21 Apr 2025 00:00:00 GMThttps://ersteiger.com/posts/softmax-attention-local-constant-estimator/https://ersteiger.com/posts/softmax-attention-local-constant-estimator/Deriving the view of softmax attention as Nadaraya-Watson kernel regression, why local constant estimators have boundary bias, and how Parallax adds a learned local-linear correction on top of softmax.Mon, 01 Jun 2026 00:00:00 GMThttps://ersteiger.com/posts/unvail/why-e-commerce-search-sucks/https://ersteiger.com/posts/unvail/why-e-commerce-search-sucks/Exploring how AI and cross-modal search can revolutionize e-commerce search, moving beyond traditional text-based methods to understand visual product features and customer intent.Sun, 05 Jan 2025 00:00:00 GMThttps://ersteiger.com/posts/vllm-vs-max/https://ersteiger.com/posts/vllm-vs-max/...Mon, 07 Jul 2025 00:00:00 GMT