konakona's personal bloghttps://blog.konakona.dev/enhttps://blog.konakona.dev/en/posts/tailscale-exit-node-through-mihomo/https://blog.konakona.dev/en/posts/tailscale-exit-node-through-mihomo/A rescue tunnel, narrowly scoped TUN interception, and a DNS poisoning investigation that made a Tailscale exit node work with MihomoThu, 03 Sep 2026 00:00:00 GMThttps://blog.konakona.dev/en/posts/qwen38-terminal-bench-21-reproduction/https://blog.konakona.dev/en/posts/qwen38-terminal-bench-21-reproduction/A complete reproduction of Qwen3.8-27B on Terminal-Bench 2.1 using SGLang, Harbor 0.21.0, and Terminus-2 across 16 A100 40GB GPUs, including setup, debugging, and result auditing.Tue, 01 Sep 2026 00:00:00 GMThttps://blog.konakona.dev/en/posts/nitp/https://blog.konakona.dev/en/posts/nitp/Predicting the next token in both the output space and the hidden space.Thu, 13 Aug 2026 00:00:00 GMThttps://blog.konakona.dev/en/posts/from-linear-attention-to-test-time-training/https://blog.konakona.dev/en/posts/from-linear-attention-to-test-time-training/Linear attention reduces the quadratic cost of standard attention to linear, which is great. But can we do better?Fri, 17 Jul 2026 00:00:00 GMThttps://blog.konakona.dev/en/posts/openclaw-webfetch-debug/https://blog.konakona.dev/en/posts/openclaw-webfetch-debug/proxychains4 DNS hijacking collided with OpenClaw's SSRF protection, leaving web_fetch completely broken.Thu, 19 Mar 2026 00:00:00 GMThttps://blog.konakona.dev/en/posts/pca-intuitive/https://blog.konakona.dev/en/posts/pca-intuitive/An intuitive explanation of PCA for dimensionality reduction, covering variance maximization, covariance matrices, and the spectral theorem.Fri, 09 Jan 2026 00:00:00 GMThttps://blog.konakona.dev/en/posts/cs50-ai-notes/6-language/https://blog.konakona.dev/en/posts/cs50-ai-notes/6-language/CS50 AI lecture notes on NLP: context-free grammars, n-grams, bag-of-words Naive Bayes, embeddings, word2vec, sequence models, attention, and transformers.Fri, 26 Dec 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/cs50-ai-notes/5-neural-networks/https://blog.konakona.dev/en/posts/cs50-ai-notes/5-neural-networks/CS50 AI lecture notes on neural networks, activation functions, backpropagation, and convolutional architectures.Fri, 19 Dec 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/cs50-ai-notes/4-learning/https://blog.konakona.dev/en/posts/cs50-ai-notes/4-learning/CS50 AI lecture notes on nearest neighbors, perceptrons, SVMs, reinforcement learning, and clustering.Sat, 13 Dec 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/cs50-ai-notes/3-optimization/https://blog.konakona.dev/en/posts/cs50-ai-notes/3-optimization/CS50 AI lecture notes on local search, simulated annealing, linear programming, and CSPs.Sun, 07 Dec 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/cs50-ai-notes/crossword-generator/https://blog.konakona.dev/en/posts/cs50-ai-notes/crossword-generator/CS50 AI project notes on solving crosswords as a CSP with heuristics and AC-3.Sun, 07 Dec 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/cs50-ai-notes/2-uncertainty/https://blog.konakona.dev/en/posts/cs50-ai-notes/2-uncertainty/CS50 AI lecture notes on probabilistic reasoning, Bayes' rule, Bayesian networks, and HMMs.Fri, 05 Dec 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/thoughts-turing-can-machines-think/https://blog.konakona.dev/en/posts/thoughts-turing-can-machines-think/Reflections on Turing's seminal 1950 paper discussing machine intelligence, the Imitation Game, and the nature of human vs. machine logic.Sun, 30 Nov 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/cs50-ai-notes/1-knowledge/https://blog.konakona.dev/en/posts/cs50-ai-notes/1-knowledge/CS50 AI lecture notes on propositional and first-order logic, entailment, and resolution.Sun, 30 Nov 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/cs50-ai-notes/minesweeper-ai/https://blog.konakona.dev/en/posts/cs50-ai-notes/minesweeper-ai/CS50 AI project notes on knowledge-based inference for Minesweeper.Sun, 30 Nov 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/cs50-ai-notes/0-search/https://blog.konakona.dev/en/posts/cs50-ai-notes/0-search/CS50 AI lecture notes on search algorithms, from BFS/DFS to A* and minimax.Fri, 28 Nov 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/swift-api-client-part-2/https://blog.konakona.dev/en/posts/swift-api-client-part-2/Learn how to build a clean, layered API client in Swift using powerful features like Generics, Codable, and Swift Concurrency.Thu, 20 Nov 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/swift-api-client-part-1/https://blog.konakona.dev/en/posts/swift-api-client-part-1/Learn how to build a clean, layered API client in Swift using powerful features like Generics, Codable, and Swift Concurrency.Wed, 12 Nov 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/missing-semester-notes/security-and-cryptography/https://blog.konakona.dev/en/posts/missing-semester-notes/security-and-cryptography/MIT Missing Semester Notes on Security & CryptographyThu, 21 Aug 2025 00:00:00 GMThttps://blog.konakona.dev/en/posts/missing-semester-notes/shell-and-command-line-tools/https://blog.konakona.dev/en/posts/missing-semester-notes/shell-and-command-line-tools/MIT Missing Semester Notes on Shell & Command-Line ToolsThu, 21 Aug 2025 00:00:00 GMT