Show HN: I got tired of travel spreadsheets so I made a travel planner app https://ift.tt/grTVqHk

Show HN: I got tired of travel spreadsheets so I made a travel planner app Hey everyone! I couldn't find an app to organize trips that gave me all the info I wanted to schedule each stop per day, with travel times, leeway, etc, so I made Wherewhen. The basic differentiator is that you can set various constraints (e.g. "I want to spend 2 hours in the park", or "I have a dinner reservation at 6"), and Wherewhen will automatically adjust the rest of the times to tell you when to go/leave each place, including travel. I've tried to make it mobile-friendly but travel planning is pretty complicated and it's a bit clunky on mobile. Feedback is appreciated! https://www.wherewhen.cc October 29, 2026 at 07:37AM

Show HN: A Cursor-like workspace for your LaTeX papers https://ift.tt/cYrhOvG

Show HN: A Cursor-like workspace for your LaTeX papers https://ift.tt/0skng6K October 29, 2026 at 02:39AM

Show HN: Fabivo – Furniture design from a photo to a numbered cut list https://ift.tt/hXMUBEF

Show HN: Fabivo – Furniture design from a photo to a numbered cut list Hello all, Ive been building Fabivo, a free furniture planner that runs in the browser. You sketch it simply by drawing it, (by far my favorite feature of this app), clicking for boards or just selecting some starting designs. But what i think separates fabivo from others its the image to model ai assistant, which took me a looong time to develop and get some quirks fixed, thanks god latest models are focusing on 3d, thats been helping too! The photo part is an image to JSON CAD harness: the model returns a parametric furniture model in mm that the app can build and edit. That harness is also what i benchmark, and honestly its the reason the app exists. I wanted to see if a photo could turn into a plan i could take to the saw. Also finetuned some image models and found interesting stuff, that was a first. My intention was to basically reuse the drawing feature to convert a 2d line sketch from image models like gpt image / nano banana to my parametric model, which "worked", and was actually thinking of using that for prod, but then cheaper/better models at 3d launched, but anyways, i learned a lot! Im getting better performance from my harness than from plain 3js, tho this is anecdotally and havent actually benchmarked it... Happy to answer anything, especially about the harness or the cut order. edit: Adding the numbers, missed them. 17 photos of real furniture, three models, same harness, medium reasoning, same tools. Scored on how close the returned structure and boards are to the gold model, so its my own set. (tho i have a hard time making a good scoring metric... just usually go by look!) Model (medium reasoning) Avg. time / photo Avg. input tokens / photo Avg. output tokens / photo Avg. tool calls / photo GPT-6.1 Terra 9.5 s 30,409 632 1.06 Claude Sonnet 5.5 13.6 s 50,167 1,592 1.18 Claude Haiku 5.5 34.9 s 66,786 6,658 2.35 Terra was both cheaper per photo and the most consistent to my likings. Sonnet was close on quality, Haiku needed way more tool calls to get there. https://ift.tt/c2r0NfP October 29, 2026 at 02:21AM

Show HN: Curate. free, no ADS, with AI, private photo cleaner for iPhone https://ift.tt/6xmIYaq

Show HN: Curate. free, no ADS, with AI, private photo cleaner for iPhone https://ift.tt/niFJPHX October 28, 2026 at 05:52AM

Show HN: A Lego-like composable Framework for RSI https://ift.tt/0dRTZwH

Show HN: A Lego-like composable Framework for RSI https://rsi-gear.github.io/ October 28, 2026 at 04:25AM

Show HN: Cirkit – Annotate, Trace, and Ask AI About Schematic PDFs https://ift.tt/1ZDYPIl

Show HN: Cirkit – Annotate, Trace, and Ask AI About Schematic PDFs Documentation tool for EEs to document their design better https://ift.tt/nZjX2CW October 28, 2026 at 12:09AM

Show HN: Diagonals (Diago) – a chess variation where the pieces stay diagonally https://ift.tt/RdScLw5

Show HN: Diagonals (Diago) – a chess variation where the pieces stay diagonally This is a variation of chess in which, in addition to the arrangement of the pieces, the rules governing pawn movement are altered, and new rules are introduced: Called Diagonals, Diago, or DiagoChess. Standard 8x8 board. White sets up in the bottom-right corner (King on h1) and moves first; Black sets up in the top-left corner (King on a8). Movement: Kings, Queens, Rooks, Bishops, and Knights move normally. Pawns move 1 square in any direction to empty squares, but capture strictly diagonally. Special Rules: No check, checkmate, castling, pawn promotion, or en passant. Win Conditions: First player to capture the enemy King wins immediately. Attacked King Mechanics: Streak Reset: The attacked turn counter resets to zero as soon as your turn starts with your King safe. You can play this version on the website; I've added full-fledged multiplayer with the ability to create public and private rooms. The multiplayer is powered by NOSTR (nostr relays). The website features a game against a bot at various difficulty levels, single-screen gameplay, online matches against other players, a time limit like in chess, and even a profile (either as a guest by entering just a nickname, or via Nostr). https://diagonals.vercel.app/ October 27, 2026 at 09:11AM