BlogViral

Show HN: A chess middlegame trainer so I can stop blundering https://dontblunder.com November 1, 2025 at 02:30AM

Show HN: Build your own Bracket City puzzle Hi HN — Bracket City is the word puzzle game I made earlier this year and (in part thanks to this community, see https://ift.tt/oWCUhQi ) managed to license to the Atlantic in April. The game has been growing a lot and I wanted to share the latest: a tool that lets anyone make a Bracket City puzzle — specifically a “Bracket Suburb”! I made this tool to help me construct puzzles, and I’ve been using it every day for months. After the Atlantic launch, I started to get the occasional inquiry about whether there was a way to make your own puzzle. One guy wanted to make a Bracket City puzzle part of a puzzle hunt he made to propose to his girlfriend (he did it!), and that convinced me it would be fun to make something publicly available. I got the Atlantic on board with the idea, and we are launching it today with an "example" custom puzzle: a Halloween/horror-themed puzzle by my pal Wyna Liu of NYT Connections fame. https://ift.tt/yvn6a...

Show HN: Meals You Love – AI-powered meal planning and grocery shopping Meals You Love is a meal planning app that creates weekly meal plans tailored to your tastes and dietary preferences. It integrates with Kroger and Instacart's APIs so you can add your meal plan groceries directly to your cart. You can also import your own recipes to include alongside AI suggestions. I originally built this to help my wife with meal planning and grocery shopping. We were always struggling to decide what to make and inevitably forgot ingredients. Most meal planners felt too rigid or generic, and few handled the grocery side well (or at all). We've also used meal kits like Home Chef in the past but they end up being quite expensive and produce a comical amount of packaging waste, plus you still wind up needing to purchase groceries anyway. In all honesty, I also wanted an excuse to try building something "real" using AI and to see if it could be used in an actually useful manner. Wo...

Show HN: I made CSV files double-click to open in Google Sheets instead of Excel I built my first macOS app to automatically open csv, xls files in Google Sheets. I work as marketing, revops person and often have to combine data from different platforms for reporting purposes. Google made the import flow super broken with too many clicks in between. So I built a simple solution that saves me some time. Sharing it here, you can test it out for free. No subscription bullshit, one time payment to get unlimited usage if you like it. Happy double clicking! https://csvtosheets.com October 31, 2025 at 12:55AM

Show HN: I made a heatmap diff viewer for code reviews 0github.com is a pull request viewer that color-codes every diff line/token by how much human attention it probably needs. Unlike PR-review bots, we try to flag not just by "is it a bug?" but by "is it worth a second look?" (examples: hard-coded secret, weird crypto mode, gnarly logic, ugly code). To try it, replace github.com with 0github.com in any pull-request URL. Under the hood, we split the PR into individual files, and for each file, we ask an LLM to annotate each line with a data structure that we parse into a colored heatmap. Examples: https://ift.tt/csfKm4y https://ift.tt/nV09PqG https://ift.tt/keQKqc2 https://ift.tt/XgqhxBW Notice how all the example links have a 0 prepended before github.com. This navigates you to our custom diff viewer where we handle the same URL path parameters as github.com. Darker yellows indicate that an area might require more investigation. Hover on the highlights to see the ...

Show HN: Research Hacker News, ArXiv & Google with Hierarchical Bayesian Models Hi Hacker News! I’m a Bayesian statistician that has been working on applying hierarchical mixture models (originally developed for genomics) to structure text data, and in the process, used these models to build (what started as a personal) tool for conducting literature reviews and deep research. My literature review process starts with a broad search to find a few key papers/groups, and from there expands along their citation networks. I needed to conduct a few rounds of literature reviews during the course of my research and decided to build a tool to facilitate this process. The tool started as an experimental wrapper over low-level statistical software in C, quickly became a testing/iteration ground for our api, and is now my personal go-to for lit reviews. The tool organizes corpuses of text content, visualizes the high level themes, and enables me to pull up relevant excerpts. Unlike LLMs, this ...

Show HN: Kedr Programming Language Kedr is a programming language for games, primarily deriving from F# and Rust. Its approach is to create a game with automatic reference counting, and then switch impactful types to manual memory management one by one. Below are some of my findings. We are used to having imports at the beginning of every file, but it might be better to keep them all in one place for the entire crate. This way code can be moved freely between files, and smaller files are encouraged. To open a file and immediately see useful code is also refreshing. It is highly beneficial when braces always mean closure. A strong argument for the indent-based code structure. Object tree creation looks more natural without parentheses and commas for function invocation. Sequential code enforcement, when elements can only depend on what is defined above, opens new possibilities. One is splitting the type constructor among multiple files, potentially located in different crates. An exampl...