My personal website. I blog here.https://ricekot.com/https://ricekot.com/2026/trmnl-on-ipad/https://ricekot.com/2026/trmnl-on-ipad/Repurposing my dusty old iPad 3 as a TRMNL display, with a self-hosted TRMNL server running in my homelab.Sun, 05 Apr 2026 00:00:00 GMThttps://ricekot.com/2025/n8n-futuremail/https://ricekot.com/2025/n8n-futuremail/Using n8n to create a future email delivery workflow.Sat, 20 Dec 2025 00:00:00 GMThttps://ricekot.com/2025/choosing-action/https://ricekot.com/2025/choosing-action/Consciously building a bias for action.Sat, 19 Jul 2025 00:00:00 GMThttps://ricekot.com/2025/idea-slot-machine/https://ricekot.com/2025/idea-slot-machine/I vibe-coded a slot machine to generate project ideas.Thu, 27 Mar 2025 00:00:00 GMThttps://ricekot.com/2025/zap-af-visual-editor/https://ricekot.com/2025/zap-af-visual-editor/I built a drag-and-drop web-based editor for ZAP Automation Framework plans.Tue, 18 Feb 2025 00:00:00 GMThttps://ricekot.com/2024/deliberate-curiosity/https://ricekot.com/2024/deliberate-curiosity/Practicing curiosity to stay saneMon, 16 Dec 2024 00:00:00 GMThttps://ricekot.com/2024/free-software/https://ricekot.com/2024/free-software/My reflections on free software and how it has shaped my life in the past 10 years.Thu, 15 Aug 2024 00:00:00 GMThttps://ricekot.com/2024/k8s-at-home/https://ricekot.com/2024/k8s-at-home/An overview of the things I did to setup a Kubernetes cluster at home with old laptops.Sun, 02 Jun 2024 00:00:00 GMThttps://ricekot.com/2024/getting-k8s-metadata-on-linux-nodes/https://ricekot.com/2024/getting-k8s-metadata-on-linux-nodes/How to get Kubernetes Pod metadata for processes on Linux nodes in Kubernetes clustersTue, 20 Feb 2024 00:00:00 GMThttps://ricekot.com/2023/finance-workflow/https://ricekot.com/2023/finance-workflow/An overview of my plain-text accounting workflow.Sun, 03 Sep 2023 00:00:00 GMThttps://ricekot.com/2023/docker-provenance-attestations/https://ricekot.com/2023/docker-provenance-attestations/Stop using Docker build arguments for your secrets!Sat, 10 Jun 2023 00:00:00 GMThttps://ricekot.com/2023/github-pr-review-checklist/https://ricekot.com/2023/github-pr-review-checklist/I wrote a tampermonkey script which adds a review checklist to GitHub PRs.Tue, 14 Feb 2023 00:00:00 GMThttps://ricekot.com/2023/activitypub-microblog/https://ricekot.com/2023/activitypub-microblog/I share why and how I set up my new microblog that's accessible at til.ricekot.com.Wed, 18 Jan 2023 00:00:00 GMThttps://ricekot.com/2022/browse-twitter-at-college/https://ricekot.com/2022/browse-twitter-at-college/Using Tailscale and a Firefox PAC file to selectively proxy websites that are blocked by the firewall on my college network.Tue, 08 Nov 2022 00:00:00 GMThttps://ricekot.com/2022/zap-extender-scripts/https://ricekot.com/2022/zap-extender-scripts/Exploring ZAP Extender scripts - a powerful and underappreciated way to customize OWASP ZAP's behavior.Tue, 13 Sep 2022 00:00:00 GMThttps://ricekot.com/2022/sicp-exercises-116-119/https://ricekot.com/2022/sicp-exercises-116-119/My solutions to some exercises from the book "Structure and Interpretation of Computer Programs".Sun, 07 Aug 2022 00:00:00 GMThttps://ricekot.com/2022/peeling-back-the-onion/https://ricekot.com/2022/peeling-back-the-onion/Why I think it is important to understand how your tools work.Wed, 03 Aug 2022 00:00:00 GMThttps://ricekot.com/2022/spring4shell-with-levoai/https://ricekot.com/2022/spring4shell-with-levoai/A guide to testing your APIs for the Spring4Shell vulnerability using Levo.ai, featured on their blog.Wed, 13 Apr 2022 00:00:00 GMThttps://ricekot.com/2022/zapcon-2022/https://ricekot.com/2022/zapcon-2022/Slides and resources from my ZAPCon 2022 presentation are now available.Tue, 08 Mar 2022 00:00:00 GMThttps://ricekot.com/2021/log4shell-detection-with-zap/https://ricekot.com/2021/log4shell-detection-with-zap/A guide to detecting the Log4Shell vulnerability using OWASP ZAP, featured on the official ZAP blog.Tue, 14 Dec 2021 00:00:00 GMThttps://ricekot.com/2021/soaring-through-stars-as-an-astra-naut/https://ricekot.com/2021/soaring-through-stars-as-an-astra-naut/My Experience as an SDE Intern at Astra SecurityMon, 30 Aug 2021 00:00:00 GMThttps://ricekot.com/2021/oast-with-owasp-zap/https://ricekot.com/2021/oast-with-owasp-zap/A walkthrough of out-of-band application security testing with OWASP ZAP, featured on the official ZAP blog.Mon, 23 Aug 2021 00:00:00 GMThttps://ricekot.com/2021/zap-oast-basic-design-decisions/https://ricekot.com/2021/zap-oast-basic-design-decisions/Design choices behind the ZAP OAST add-on: file structure for extensibility, GUI design, and moving the callback extension into OAST.Sun, 11 Jul 2021 00:00:00 GMThttps://ricekot.com/2021/levelling-up-zap-with-oast/https://ricekot.com/2021/levelling-up-zap-with-oast/Introducing the OAST add-on for OWASP ZAP, bringing out-of-band security testing capabilities like blind SQLi detection to the proxy.Fri, 25 Jun 2021 00:00:00 GMThttps://ricekot.com/2021/sicp-exercises-111-115/https://ricekot.com/2021/sicp-exercises-111-115/Detailed solutions to SICP exercises 1.11-1.15, including a deep dive into the order of growth of the count-change procedure.Tue, 05 Jan 2021 00:00:00 GMThttps://ricekot.com/2020/hot-swappable-jekyll-themes/https://ricekot.com/2020/hot-swappable-jekyll-themes/Setting up a Jekyll blog so themes can be swapped by changing a Git branch, using submodules and GitHub Actions for automation.Mon, 30 Nov 2020 00:00:00 GMThttps://ricekot.com/2020/grand-scheme/https://ricekot.com/2020/grand-scheme/Notes and solutions to the first 10 SICP exercises, covering evaluation order, recursion vs. iteration, and tail recursion in Scheme.Thu, 12 Nov 2020 00:00:00 GMThttps://ricekot.com/2020/mechanics-slender-structures/https://ricekot.com/2020/mechanics-slender-structures/Study notes on forces in slender structures: shear force and bending moment diagrams, distributed loading, and singularity functions.Fri, 09 Oct 2020 00:00:00 GMThttps://ricekot.com/2020/life-and-meaning/https://ricekot.com/2020/life-and-meaning/Wrestling with nihilism and meaning through Frankl, Harari, and Cal Newport, and arriving at a personal reason to keep going.Thu, 08 Oct 2020 00:00:00 GMThttps://ricekot.com/2020/cte-techweekend-ctf/https://ricekot.com/2020/cte-techweekend-ctf/First-place writeup from CTE TechWeekend CTF 2020, covering reverse engineering with Ghidra, .pyc decompilation, and JSON injection.Mon, 05 Oct 2020 00:00:00 GMThttps://ricekot.com/2020/topological-spaces/https://ricekot.com/2020/topological-spaces/Notes on the fundamentals of topological spaces: definitions, open sets, discrete and indiscrete topologies, with proofs for co-finite and co-countable topologies.Tue, 08 Sep 2020 00:00:00 GMThttps://ricekot.com/2020/introducing-graphql-addon/https://ricekot.com/2020/introducing-graphql-addon/Announcement of the GraphQL add-on for OWASP ZAP, featured on the official ZAP blog.Fri, 28 Aug 2020 00:00:00 GMThttps://ricekot.com/2020/graphql-generator-2/https://ricekot.com/2020/graphql-generator-2/Adding full type support, multiple query strategies, and request methods to the ZAP GraphQL query generator.Thu, 30 Jul 2020 00:00:00 GMThttps://ricekot.com/2020/graphql-generator-1/https://ricekot.com/2020/graphql-generator-1/Building a recursive GraphQL query generator for OWASP ZAP as part of Google Summer of Code 2020, from pseudocode to working Java.Fri, 10 Jul 2020 00:00:00 GMThttps://ricekot.com/2020/measure-theory-5/https://ricekot.com/2020/measure-theory-5/Tackling a tricky proof about preimages of generated sigma-algebras, with a useful StackExchange trick for working with generated collections.Thu, 09 Jul 2020 00:00:00 GMThttps://ricekot.com/2020/measure-theory-4/https://ricekot.com/2020/measure-theory-4/Proving that preimage collections form sigma-algebras, working through exercises 111X(c) and 111X(d) from Fremlin's Measure Theory.Mon, 06 Jul 2020 00:00:00 GMThttps://ricekot.com/2020/measure-theory-3/https://ricekot.com/2020/measure-theory-3/Proving set identities and showing that all intervals are Borel sets, with a neat Archimedean property argument.Sat, 04 Jul 2020 00:00:00 GMThttps://ricekot.com/2020/measure-theory-2/https://ricekot.com/2020/measure-theory-2/Understanding Borel sets by first building up the concepts of generated sigma-algebras and open sets.Fri, 03 Jul 2020 00:00:00 GMThttps://ricekot.com/2020/measure-theory-1/https://ricekot.com/2020/measure-theory-1/Notes on sigma-algebras, countable sets, and measure spaces from Fremlin's Measure Theory series.Wed, 01 Jul 2020 00:00:00 GMThttps://ricekot.com/2020/cryptography-assignment-5/https://ricekot.com/2020/cryptography-assignment-5/Solving Shamir's secret sharing and elliptic curve point doubling to wrap up the cryptography assignment series.Tue, 23 Jun 2020 00:00:00 GMThttps://ricekot.com/2020/cryptography-assignment-4/https://ricekot.com/2020/cryptography-assignment-4/Working through El Gamal digital signatures and applying Hadamard gates to a 2-qubit quantum system.Mon, 22 Jun 2020 00:00:00 GMThttps://ricekot.com/2020/cryptography-assignment-3/https://ricekot.com/2020/cryptography-assignment-3/Tackling Rabin decryption and digital signatures using the Chinese Remainder Theorem and extended Euclidean algorithm.Sun, 21 Jun 2020 00:00:00 GMThttps://ricekot.com/2020/cryptography-assignment-2/https://ricekot.com/2020/cryptography-assignment-2/Solving RSA decryption and digital signature problems step by step, from factoring n to computing modular inverses.Sat, 20 Jun 2020 00:00:00 GMThttps://ricekot.com/2020/cryptography-assignment-1/https://ricekot.com/2020/cryptography-assignment-1/Working through CBC-MAC and Diffie-Hellman key exchange problems by looking up each concept as needed.Fri, 19 Jun 2020 00:00:00 GMThttps://ricekot.com/2020/maths-is-fiction/https://ricekot.com/2020/maths-is-fiction/Solving a calculus of variations problem from scratch, documenting every search and stumble along the way.Sun, 14 Jun 2020 00:00:00 GMThttps://ricekot.com/2020/baby-steps/https://ricekot.com/2020/baby-steps/Week 2 of GSoC: building import dialogs for the ZAP GraphQL add-on and mapping out GraphQL data types.Wed, 03 Jun 2020 00:00:00 GMThttps://ricekot.com/2020/beginning-my-security-journey/https://ricekot.com/2020/beginning-my-security-journey/How a love for taking things apart led me to open source and my Google Summer of Code project with OWASP ZAP.Thu, 28 May 2020 00:00:00 GMThttps://ricekot.com/2019/digital-detox/https://ricekot.com/2019/digital-detox/A personal account of giving up my smartphone and social media, and learning to be patient again.Sat, 07 Dec 2019 00:00:00 GMThttps://ricekot.com/2019/notes-gradient-descent/https://ricekot.com/2019/notes-gradient-descent/Step-by-step notes on implementing gradient descent for linear regression in PyTorch, with code and visualizations.Sun, 14 Jul 2019 00:00:00 GMThttps://ricekot.com/2019/holdups-gradient-descent/https://ricekot.com/2019/holdups-gradient-descent/Questions and resources I collected while trying to understand gradient descent, autograd, and backpropagation.Thu, 27 Jun 2019 00:00:00 GMThttps://ricekot.com/2019/handwritten-digits-classifier/https://ricekot.com/2019/handwritten-digits-classifier/Training a ResNet34 model on the MNIST dataset to classify handwritten digits using fastai.Thu, 06 Jun 2019 00:00:00 GMThttps://ricekot.com/2019/anime-or-cartoon/https://ricekot.com/2019/anime-or-cartoon/Training a deep learning image classifier to distinguish anime from cartoons using fastai and ResNet34.Wed, 05 Jun 2019 00:00:00 GMThttps://ricekot.com/2018/i-found-a-bug/https://ricekot.com/2018/i-found-a-bug/Discovering and exploiting a brute-forceable password reset flaw on a website using a Python script.Wed, 14 Feb 2018 00:00:00 GMThttps://ricekot.com/2016/sieve-of-eratosthenes/https://ricekot.com/2016/sieve-of-eratosthenes/Implementing the Sieve of Eratosthenes in C++ to generate primes, with a walkthrough of why the algorithm works.Sat, 06 Feb 2016 00:00:00 GMThttps://ricekot.com/2016/number-guessing-game/https://ricekot.com/2016/number-guessing-game/Building a binary search-powered number guessing game in C++ and reflecting on the beauty of simple algorithms.Tue, 02 Feb 2016 00:00:00 GMT