Ask HN: What are you working on? (July 2025)

50 david927 135 7/27/2025, 5:19:19 PM
What are you working on? Do you have any new ideas you're thinking about?

Comments (135)

jvink · 34s ago
Working on sanctum [0] and reliquary [1].

Soon approaching a 1.0 release for sanctum once I get my brain out of vacation mode and into hacking mode again. A lot has happened this year and I am excited.

I will be talking about how sanctum and its cathedrals work at sec-t 2025 [2].

[0] https://github.com/jorisvink/sanctum

[1] https://reliquary.se

[2] https://sec-t.org

alextousss · 1h ago
My roommate and I are still working on Tornyol, our mosquito killing drone! It uses ultrasonic sonar to detect mosquitoes, and missile control theory to ram into mosquitoes and grind them in its propellers.

Our target platform is a 40 grams tinywhoop so it’s safe to fly everywhere and makes almost no noise :). A Roomba for mosquitoes!

The main plus compared to traditional systems is that a drone can cover an enormous surface in a short time compared to static systems or man-portable insecticide spraying. Our goal is to be competitive with ITNs against Malaria.

Some links :

https://hackaday.com/2025/03/25/supercon-2024-killing-mosqui...

https://manifund.org/projects/build-anti-mosqu

atlasunshrugged · 44m ago
Hadn't seen this before, this is awesome! I lived in Cameroon and Kenya briefly doing some consulting work and mosquitos still wreak havoc across the continent (and now living in DC I wouldn't mind having one of these in the summer for my place). I'm curious if you're also thinking about defense applications -- I would imagine that a super low cost drone that could help take out a shahed or other Russian drone that are wreaking havoc on Ukraine would be quite valuable
alextousss · 30m ago
Glad to hear we could be of help! Some of our tech could be used for defense, but traditional defense companies and ukrainian startups already do low-cost shahed interceptors.
atlasunshrugged · 19m ago
My impression is the solutions are still somewhat lacking/necessary -- I know Frankenburg, Eric Schmidt's stealth startup, and surely the primes are all working on it but given how many shaheds are still getting through (plus all the drone action at the frontline) I imagine there's still a market for low-cost; especially if they're largely autonomous
contingencies · 11m ago
Please make sure it is specific to mosquitos and does not attack other insects.

Insect populations worldwide are experiencing significant declines in both abundance and diversity, with several studies reporting reductions ranging from 40% to 75% over recent decades. Estimates suggest that 5%–10% of all insect species have disappeared in the last 150 years, and some global meta-analyses indicate terrestrial insect populations are declining by close to 9% per decade.

czhu12 · 45m ago
This is incredible. What is the background you needed to even have intuition on how to build something like this?
alextousss · 29m ago
Just an insane obsession with ultrasound! (and some control theory classes)
Galorious · 1h ago
Ha so cool, would love one for in my bedroom ;-)

I know of a Dutch company doing something similar. Focusses on pest detecting/mitigation in greenhouses atm: https://www.pats-drones.com/

alextousss · 1h ago
Yeah, what they do is very cool. Not sure how far they are in the development but the videos are super cool.
rush86999 · 1m ago
I'm working on a superpowered version of Siri/Alexa that can manage finances, notes, meetings, research, automation, and communication - including email/Slack

https://github.com/rush86999/atom

Check it out.

nkristoffersen · 2m ago
We are working on Gossip: the future of media insights (think Meltwater, Brandwatch, etc).

It’s been a journey but getting close to launching our first version to pilot customers in August. We use an enormous amounts of AI tokens every month to extract data not possible with any traditional player in this media monitoring space. Benchmarking competitors, tracking impactful discussions, and actionable brand insights.

If you are currently using one of the big media monitoring companies, I’d love to chat!

https://www.gossipinsights.com/en/top-companies/us/

greenbeans12 · 1m ago
We're working on Crystal: a real time infrastructure map for energy operations in the Pacific Northwest. Our focus is to inform energy traders, dam operators, and transmission analysts to support a reliable grid.

https://askcrystal.info/dashboard

kaspermarstal · 32m ago
I'm continuing the work on Cellm, an Excel extension that let's you call LLMs in cell formulas like =PROMPT(A1, "Rate the sentiment of the customer feedback as positive, neutral, or negative"), and then drag the formula down to apply the same prompt to thousands of rows. I built it after my girlfriend had to manually classify 7,500 research papers. Cellm automates that kind of repetitive work.

Since we added MCP and the use of structured output to "spill" multiple return values into adjecent cells, it is the quickest way I know of to monitor competitors blogs everyday before my 09:00 meeting. And also the quickest way I know of to test new AI models. I have a sheet with SimpleQA, MMLUPro, or GPQA Diamond and testing a new model is a matter of adding a new column. The whole idea is to enable normal people (like, non-techies) to automate manual, repetitive tasks with AI like programmers routinely do.

https://github.com/getcellm/cellm

rpastuszak · 35m ago
Because of a HN post(https://news.ycombinator.com/item?id=44421776), I've got a ton of feedback for Ensō: my writing app for flow/stream of consciousness writing. So, I'm wrapping up the release and adding good support for non-Latin, esp. RTL languages (Arabic, Persian, Hebrew) + pinyin and Japanese input methods.

Recently I also made a font for it! https://untested.sonnet.io/notes/433-how-to-make-a-font-that...

I'm also thinking about organising the usage patters, because over the past few years I've collected a few interesting groups: mental health focussed users, script writers, neurospicy folks, bloggers, squirrel enthusiasts. I'm thinking about this here: https://untested.sonnet.io/notes/how-people-use-enso/

willahmad · 7m ago
I am working on easiest way to manage all your MCP configurations and credentials. Additionally, I have added couple of interesting MCP servers, like converting any OpenAPI v3 spec to MCP server (including support of authentication): https://x.com/getaikoapp/status/1945278307496235482

After working on and using many MCP servers, I hit couple of issues multiple times:

* Do I configure 2 MCP servers of same type for 2 different API Keys or do I manually update configurations all the time? (e.g. production and development environments)

* when I have too many tools enabled, I noticed that either I am hitting context limit too quickly or LLM is hallucinating when choosing a right tool

* Some MCP servers expose a lot of tools, I want to disable some of them forever, instead of doing configuration per AI assistant (first for Claude, then Cursor and so on)

* Most MCP servers are hosted by third parties, as a privacy conscious person, I do not want to share my credentials with third parties.

And I am building Aiko - AI tools marketplace: https://getaiko.app

NOTE: Gmail and Calendar apps are currently under CASA Tier 2 security assessment, hence not published to production. But you can see demo usage here: https://www.youtube.com/watch?v=ZgEy6Y1kfn4

chidog12 · 3m ago
Working on Lunova — a QuickBooks Online app that you can create custom alerts via SMS/email such as when big deposits land, invoices go overdue, or vendor prices spike. Just cleared Intuit’s tech/security + marketing review (Took over 3 months... after building the MVP) and we’re now live on the QBO App Store. Feedback and feature requests welcome: https://uselunova.com
jesse__ · 5m ago
I've been working on a 3D voxel-based game engine for like 10 years in my spare time. The most recent big job has been to port the world gen and editor to the GPU, which has had some pretty cute knock-on effects. The most interesting is you can hot-reload the world gen shaders and out pop your changes on the screen, like a voxel version of shadertoy.

https://github.com/scallyw4g/bonsai

I also wrote a metaprogramming language which generates a lot of the editor UI for the engine. It's a bespoke C parser that supports a small subset of C++, which is exposed to the user through a 'scripting-like' language you embed directly in your source files. I wrote it as a replacement for C++ templates and in my completely unbiased opinion it is WAY better.

https://github.com/scallyw4g/poof

marginalia_nu · 5m ago
Optimizing the Marginalia Search index code. The new code is at least twice as fast in benchmarks, but I can't run it in production because it turns out when you do it's four times as slow as what came before it for the queries that are the simplest and fastest to the point where queries exceed their timeout values by a lot.

I'm 97% certain this is because the faster code leads to more page thrashing in the mmap-based index readers. I'm gonna have to implement my own buffer pool and manage my reads directly like that vexatious paper[1] said all along.

[1] https://db.cs.cmu.edu/papers/2022/cidr2022-p13-crotty.pdf

thepoet · 6m ago
I am working on a chess analytics tool, specifically a free and open source replacement of Chessbase in this age of LLMs that can run on all platforms. The idea is to lower the barrier of entry to use a chess improvement tool since Chessbase can be intimidating for a causal Chess.com beginner looking to go into serious chess prep. At present, it can do basic queries like H2H score of Magnus Carlsen vs Hikaru Nakamura, the top 10 juniors in the US, Magnus Carlsen's games with the London system opening and involving a queen sacrifice etc. Though getting it to work for advanced multi-step tactical patterns and finding games with certain imbalances in the query using natural language is getting challenging. DuckDB has helped a lot, along with modern LLMs for query generation with schema and some preprocessing of game PGNs and piece hashes. It can also import a user's Chess.com and Lichess games given the usernames and do similar queries as on Master level games.

I also used the tool to generate an Adult Chess improvers FIDE rank list for all federations around the world. Here are the July 2025 rankings though it still needs major improvements in filtering - https://chess-ranking.pages.dev

------------------

Another idea that I have been working on for sometime is connecting my Gmail which is a source of truth for all financial, travel, personal related stuff to a LLM that can do isolated code execution to generate beautiful infographics, charts, etc. on my travels, spending patterns. The idea is to do local processing on my emails while generating the actual queries blindly using a powerful remote LLM by only providing a schema and an emails 'fingerprint' kind of file that gives the LLM a sense of what country, region, interests we might be talking about without actually transmitting personal data. The level of privacy of the 'fingerprint' vs the quality of queries generated is something I have been very confused with.

czhu12 · 49m ago
I'm working on a Heroku / Render / Flyio alternative thats free, open source, built on top of Kubernetes.

Supports deployments of your own apps as well as 15k+ other packages (postgres, airbyte, dagster, etc) via helm charts.

https://github.com/czhu12/canine https://canine.sh

Reason? Got sick of paying for the massive markups on PaaS but missed the simplicity and convenience.

abnercoimbre · 12m ago
> What are you working on?

Early Access for a new terminal emulator [0] bringing dead text to life. It's my professional dream to evolve our conception of terminals without bringing in the bloat of, say, electron (read: staying native).

>Do you have any new ideas you're thinking about?

I like the thought of dropping you into the terminal right on the browser. It wouldn't be the real thing, but having a toy to play with is often superior to dry docs.

[0] https://terminal.click

mkw5053 · 1h ago
I kept finding myself having to write mini backends for LLM features in apps, if for no other reason than to keep API keys out of client code. Even with Vercel's AI SDK, you still need a (potentially serverless) backend to securely handle the API calls.

I've been working on an open source LLM proxy that handles the boring stuff. Small SDK, call OpenAI or Anthropic from your frontend, proxy manages secrets/auth/limits/logs.

As far as I know, this is the first way to add LLM features without any backend code at all. Like what Stripe does for payments, Auth0 for auth, Firebase for databases.

It's TypeScript/Node.js with JWT auth with short-lived tokens (SDK auto-handles refresh) and rate limiting. Very limited features right now but we're actively adding more.

Currently adding bring-your-own-auth (Auth0, Clerk, Firebase, Supabase) to lock down the API even more.

GitHub: https://github.com/Airbolt-AI/airbolt

ilamparithi · 11m ago
I've been working on GrokVocab (https://www.grokvocab.com), an app to improve vocabulary without flashcards or memorization.

Everyone knows reading is the best way to build vocabulary, but many avoid it and turn to flashcards or spaced repetition because long texts can feel overwhelming, and they often have to refer to a dictionary.

This app gives users short, engaging passages focused on comprehension. While reading, users guess word meanings from context and find out whether they got it right by answering a few questions below. I believe this will be helpful for people who haven’t had much success with popular vocabulary learning methods.

I shared it on HN earlier (https://news.ycombinator.com/item?id=44543063), but it didn’t get much attention. If you're interested in novel learning methods or vocabulary, I’d love your feedback.

P.S. Login is required since the app uses LLMs to generate interesting passages. You can register with any non-existent email if privacy is a concern.

vldszn · 5m ago
I’m working on a free & open-source invoice generator:

- Live PDF preview

- 100% client-side

- No sign-up required

- Includes a Stripe-style invoice template

- Built with modern web tech – simple to self-host or fork

Repo: https://github.com/VladSez/easy-invoice-pdf

Demo: https://easyinvoicepdf.com

Would love feedback, contributions, or ideas for other templates/features!

mlitwiniuk · 22m ago
Working on Humadroid - trying to make SOC2/ISO27001 compliance less painful for small businesses. The $30-50K consultant route is brutal for startups, so we're building an AI-assisted platform that helps with policy generation and guidance. Still in beta and learning a lot from each customer we onboard. We're actually going through our own SOC2 assessment in August, which has been... educational. Recently added business continuity and incident tracking features. Trying to build something that's actually helpful rather than just another compliance checkbox tool. If anyone's interested: humadroid.io or feel free to join our beta waitlist at https://humadroid.io/join-the-humadroid-beta-waitlist/ If anyone's been through the compliance journey, would love to hear what worked (or didn't work) for you!
dm03514 · 6m ago
Productionizing duckdb :) I built a streaming tool around duckdb that allows for high performance stream processing and a rich connector ecosystem:

https://github.com/turbolytics/sql-flow

Building a company around a tool is hard. There's been some interest but streaming is kind of commoditized.

I'm taking everything I learned building it and working on a customer-facing security product, more to come on that :)

dataviz1000 · 58m ago
I'm copying the Puppeteer / Playwright client API to run in a Chrome extension using the native Chrome extension APIs.

It is possible to run Playwright inside a Chrome extension, however, it requires the Chrome DevTools Protocol (CDP) to automate a browser which really hurts the user experience, is very slow, and opens security vulnerabilities. Chrome extension APIs can accomplish maybe ~85% of the same functionality as CDP or Webdriver BiDi -- it isn't complete because of security features which shouldn't be bypassed anyhow. For example, instead of calling a function in a content script with 'script.callFunction' with Webdriver BiDi in Playwright, a function is called with chrome.scripting.executeScript(). It will be 2 or 3 more weeks before I post a PoC.

This is following my work using VSCode's core libraries in a Chrome extension exactly as they are used in an Electron app to drive VSCode and Cursor. The important part is VSCode's IPC / RPC which allows all the execution contexts and remote runtimes to communicate with each other. [0] This solves many problems I have had in the past automating browsers with a Chrome extension.

[0] https://github.com/adam-s/doomberg-terminal

lifeisstillgood · 6m ago
Two things I’m thinking on.

Firstly a DevManual - for “any” software team/IT dept - how to think about the philosophy, history and practise of basically everything - release management, backup and recovery or IAM and security and marketing-by-engineering or CSS

It’s kind of “this much I know” and a working docker based OSS “software team in a box”

And the second one is really expanding on the philosophy - how software is changing companies and how democracy works with software

rollinDyno · 14m ago
Have you ever wanted to write your life story but found it too overwhelming? I’m developing an app that acts as your personal interviewer, guiding you through your memories and helping you share them with your loved ones.

The app is designed for older adults who enjoy reminiscing but struggle to organize their thoughts into a coherent narrative. The goal is to preserve their hard-won insights and pass them down—to family members who may be too busy to ask the right questions now, and to future generations who would otherwise never hear these stories.

I have a working prototype that allows me to test the interview flow, and I’ll soon be sharing it with friends and family for initial feedback. I’m now looking for a designer to collaborate on the next phase.

Design will be a critical part of this app. The way stories are visually presented will be central to the user experience and will likely determine the app’s success. If you’re a designer interested in this kind of work, I’d love to hear from you. Given the text-heavy nature of the app, experience with typography and content-focused design will be especially valuable.

samwillis · 1h ago
Tanstack DB - a new client side store for web apps, with transactions, optimistic state, and live queries spanning multiple collections.

It's designed for sync, so rather than fetching you can hook it up to a sync engine (any!) to keep your front end in sync with your backend. It's built on Tanstack Query, making the sync engine optional, and a great path for incremental adoption.

The query engine uses a typescript implementation of differential dataflow to enable incremental computation of the live queries - they are very fast to update. This gives you sub ms fine grade reactivity of complex queries (think sql like joins, group by etc).

Having a lot of fun building it!

https://tanstack.com/db/latest https://github.com/TanStack/db

spike021 · 29m ago
We're supposed to use AI at work, which has been very 50/50 for me as expected.

Last month I decided to take a subscription of my own for Claude Code to use in my personal time mostly for practice and educational purposes.

So the past few weekends and the occasional week night I've been vibe-coding a game for iOS/MacOS using Swift and SpriteKit.

I have some experience with Swift previously but not at work, so it's extremely experimental for me. However it's been going pretty well. Most of the hang-ups are Xcode configuration issues.

It's interesting to poke Claude a bit and discover what it's actually decent at and awful at.

Gameplay mechanics-wise it's been able to implement things as requested generally without problems.

UI elements like menu screens and such it has been almost completely unable to do no matter what prompt I give to it.

It's safe to say I would never call the codebase professional quality. However, the base game has been implemented well enough to play without bugs and I've been solidly impressed.

zenlot · 19m ago
How do you find xcode, is it as bad as everyone bashes it at reddit? I am planning to get m4 mac mini and do some Swift development, just didn't use xcode ever.
spike021 · 14m ago
These days it feels particularly outdated. I'm used to Sublime Text and VS Code for most of my day-to-day work and I just find navigating code such a chore in Xcode.

The other issue I've had is if I want to change project/target/build settings, Xcode doesn't provide an easy way to do so. You need to poke around the UI to find where these settings and file relationships are set and change them that way.

There's a project file that I believe contains them all but it's not intuitive to modify by hand.

jerlendds · 11m ago
https://github.com/osintbuddy/osintbuddy - Node graphs, data mining, and plugins. This year I've rewritten the project to learn Rust and we're nearly at feature parity compared to the old Python version (github.com/jerlendds/osintbuddy). I'm currently working out how the Python plugin system will work and I've jotted down some thoughts related to that here: https://studium.dev/osib/architecture#existing-plugin-system...
amenghra · 7m ago
I've been building Crossabble (https://crossabble.com/) a free and fun weekly web word game. Feedback welcome!

The game is mostly done, so I'm now focused on tooling to make it easier for me to craft each week's puzzle. I'm solving some interesting graph and optimizations problems

sfpotter · 13m ago
I've got a long term project trying to see how far I can get writing a contact simulation using techniques from Klaus Hollig's book on B-spline finite element methods. I'm using D for this. I've been focusing on level set domains, which has led to me spending an inordinate amount of time on high order boundary parametrizations. I'm very curious to see how efficient an approach like this can be made, especially using multigrid. I do numerics and geometry professionally, and this is a bit outside my wheelhouse, although close enough to what I do at my day job that I'm hoping there will be some nice cross pollination of ideas.
joshuakcockrell · 15m ago
I’m currently 4 years in to doing everything possible to build the best budgeting app https://envelopebudgeting.com

This week I’ve been working on predicting upcoming paychecks with Nodejs so we can automatically decide how much funds to move into your budgets when you get paid. I pull the past 3 months of transaction data from our Postgres database using Prisma and run some analysis.

People think syncing and delayed transaction data is normal, and I’m working on changing that by having the budgeting built in to the checking account. Along with a high yield savings account, goal envelopes, bill envelopes, etc, joint accounts, etc.

pedro_caetano · 59m ago
Playing with motion amplification to see if we can predict heart/respiratory rate of my newborn. I shot a few 4k videos of him sleeping as test data and working through some algorithms from published papers.

On parental leave with my third. We are on month 4 so I have (a bit more) free time in the late evenings after we put the older ones to bed.

Joeboy · 23m ago
If it's not gauche to post the same thing two months running, I've been working on https://filmhose.uk, a listings site for London's independent and arts cinemas. Now at the awkward stage where I should probably stop messing about with the site and start "growth hacking" or something.
ArneVogel · 23m ago
Hej, I am still working on FisherLoop [1] to learn Swedish (but I have added German, Spanish, French and Italian since). I created FisherLoop because I like audiobooks for language learning but I hated having to pause to look up words + I want to read along the book while listening. With FisherLoop I made "interactive audiobooks" where I use TTS with word level timestamps to highlight the words as they are spoken + I can click on words for the translation.

I am using cerebras for book translations and verb extraction and all LLM related tasks. For TTS I am using cartesia. I have played around with Elevenlabs and they have slightly natural sounding TTS but their pricing is too steep for this project. Books would cost a couple of hundred euros to process.

[1] https://www.fisherloop.com/en/

Jonathanfishner · 55m ago
We’re building ChartDB - an open-source tool to visualize and edit your database schema.

Supports Postgres, MySQL, SQLite, MSSQL, ClickHouse. Includes AI export to generate DDL in any SQL dialect.

17.5k+ GitHub stars, Feedback welcome!

https://github.com/chartdb/chartdb https://www.chartdb.io

pydanny · 12m ago
Taking time off from formal employment to work on whatever I want. Which is open source projects entirely of my own choosing.
wonger_ · 4m ago
Which projects have you worked on recently?
hiAndrewQuinn · 28m ago
I'm releasing an actually instant search-to-type TUI and CLI Finnish to English dictionary called Taskusanakirja (pocket dictionary). It's been steadily optimized to the hilt to be the perfect brookside or website-side dictionary for any learner of the Finnish language. Available on Windows, Mac and Linux as a single standalone executable, with an optional paid database download for Taskusanakirja Pro.

This is the first time I've ever actually released something with a monetization option, so I'll be interested to see where it goes. It's a small enough niche that I think I have several features that genuinely don't exist anyplace else, like the ability to lemmatize even heavily inflected words (a very common stumbling block for learners of Finnish).

A web app would obviously be much easier to monetize, but then I would lose the buttery smooth feel of the search at it currently exists.

Tsemppiä! It's not live yet, but when it is it will be at https://taskusanakirja.com/.

SophieBroderick · 1h ago
I've been working on an new approach to working with SQL: https://5QL.site

You select columns and then just drill down to create further joins. Change the SQL text and it updates the view.

I'm a CS undergrad would love feedback.

iambateman · 1h ago
This is interesting, both in the sense that you did a great job on it, and I think unexpected-ways-to-explore-SQL is underrated. There are a lot of SQL databases that people could benefit from being able to drop a tool like this onto and explore.

One of the most interesting applications for LLM's is writing SQL based on a schema, and I wonder if your tool could incorporate a "show me the books titles from authors who's name starts with T" and write that out.

Good luck!

SophieBroderick · 1h ago
Thank you!

Yes, I agree. Just as we need to check what LLMs produce when writing code, I think this could be a way to check what they produce when trying to write SQL.

atlasunshrugged · 48m ago
I'm finishing up a "book tour" (mostly podcasts) for my recently released book on how the country of Estonia modernized so quickly post re-independence from the Soviet Union and became a leader in e-government services and a top EU startup hub (Skype, Bolt, Wise, etc.). I'd love if people checked it out and gave feedback as it's my first big published work and the culmination of quite a few years of research and writing. https://www.rebootinganation.com/ or https://global.oup.com/academic/product/rebooting-a-nation-9...
malshe · 6m ago
Congratulations on the book release. Do you plan to make an audiobook version for it?
ziyasal · 16m ago
I'm working on this, improving in every iteration. (Documentation needs to be updated as well)

https://github.com/bugthesystem/Flux

Flux is a high-performance message transport library for Rust that implements patterns inspired by LMAX Disruptor and Aeron. It provides lock-free inter-process communication (IPC), UDP transport, and reliable UDP with optimized memory management for applications with low latency requirements.

williamcotton · 1h ago
A web app DSL that looks like:

  GET /hello
    |> jq: `{ world: ":)"}`

  pipeline getPage = 
    |> jq: `{ sqlParams: [.params.id | tostring] }`
    |> pg: `SELECT * FROM pages WHERE id = $1`
    |> jq: `{ team: .data.rows[0] }`
  
  GET /page/:id
    |> pipeline: getPage
WIP article that explains more:

https://williamcotton.com/articles/introducing-web-pipe

I would love feedback!

duncanfwalker · 30m ago
I really like it. I particularly like that you've resisted the temptation to include SQL itself or the jq queries in the DSL.

The validation piece makes it feel a bit a bit like the Rails mindset for people who work better in FP.

I'd make a could of suggestions for the docs: Maybe a bit more discussion of how we'd test our webpipe code. I see why you've called them 'middlewares' but, maybe the term 'macros' or 'pipeline functions' might avoid confusion with express/connect middlewares

williamcotton · 10m ago
Ooh, I like “pipeline functions”!

And thanks for the motivation to for figuring out a good way to talk about testing and generally clean up the (very messy) docs.

It’s comments like yours that give someone the drive to continue.

elpalek · 24m ago
I'm building a information hub that utilize AI agents to compile all the relevant information from China (gov, econ, commerce, anything and everything). I call it "information domination". Heard many times that language barrier stops people having a better understanding of China. Now the LLM translation is good enough, and AI agents can do way more in information gathering stage. It's time to put things in practice.

https://wallnot.com

For now, it only has a daily newsletter fully compiled by AI agents without any human intervention. I plan to add public listed companies (semiconductor, energy provider, etc) onto the platform. Already found lots of good data points that can be used by analysts, researchers or observers.

chistev · 1h ago
I'm building ClosedLinks, a tool for sharing files and/or messages anonymously through one-time access links with no traceable sender. Most digital tools assume persistence; ClosedLinks is built for ephemerality and unlinkability. Each link is single-use, redirects on access, and stores encrypted content only temporarily. Recipients never see the original URL, enabling plausible deniability. Think: whistleblowers.

Encryption uses Fernet (symmetric), and all decryption happens only at point of access. There's no data retention after viewing or expiration. Optional analytics give visibility without compromising identity. Users can get notified when their shared links was accessed by the recipient, and they can set passwords for enhanced security. Limitations include email-based signups and no end-to-end encryption (yet).

You can check it out at = https://www.closedlinks.com/

You can read the white paper here - https://www.closedlinks.com/white-paper/

markasoftware · 1h ago
I'm writing an encrypted and padded IP tunnel to help people build their own multi-hop circuits to access the internet anonymously, without Tor, and with protection from end-to-end correlation attacks.

https://github.com/markasoftware/i405-tunnel

barrell · 1h ago
Still working on https://phrasing.app - an app for polyglots to learn over 120 languages in the most effective manner and a beautiful UI. Just finished a onboarding flow, now updating the search and create experience to fall more in line with actual usage from users, then hopefully prepping for a more public launch :)

Had a fun week fixing up the application so it’s 100x faster on 5 different axes, and it’s starting to feel really well polished. Also started to move from reagent to preact/signals in a long slow migration hopefully to hsx.

I also moved the critical algorithm logic into an independent Clojure file that is compiled (and tested) with cherry-cljs — I’m hoping to expand this to ClojErl and jank so I can have isomorphic Clojure code running on the browser, BEAM server, and native swift app :D

It’s getting really close to done, I’m using it now to study 18 different languages, including some really minor ones like Maltese, Welsh, and Cantonese (not sure if Cantonese is really a minor language, but definitely low learner resourced) and it’s easy, slick, and surprisingly effective!

joelthelion · 1h ago
Sounds nice! A word of advice, instead of claiming 120 languages, I feel it would be better to focus on a few an ensure that they work well with native speakers.
cibyr · 41m ago
I've been working on a little utility to transfer files between two computers using QR codes: https://github.com/cibyr/qftf

It's kinda like Magic Wormhole without typing. It uses iroh for the p2p networking - on both ends, and also in the little web app that you use to scan the QR codes and start the transfer.

tommsy64 · 29m ago
Have you seen https://file.pizza/ FilePizza? Similar concept using WebRTC
mNovak · 29m ago
Making progress on a Warhammer 40k rules engine and client (think in-browser RTS style). It's actually getting to be playable with a reduced rules set, and designed to be highly extensible / plug-in-able.

I'll still need to implement some kind of "AI" opponent or hack together P2P networking to demo it though; playing against yourself is fine for testing, but not really how the game is meant to be played.

It's hand coded so far, but I'm hoping AI can be a big lift for churning out the multiple thousands of named special rules, as most of these are very simple (+1 here, reroll there, etc).

Any WH40k players out there? Love to hear your thoughts!

moojacob · 26m ago
I've been working on an app that writes customer emails so small businesses can focus on what energizes them.

It makes answering customer emails 10x easier.

The magic are training templates which are templates that get suggested (and eventually auto-selected) and personalized by LLM for every reply.

Every reply sent trains it to auto select that training template for future similar customer emails.

The stack is Ruby on Rails and Postgres hosted on DigitalOcean. The LLM currently is Kimi K2 hosted on Groq.

https://vipreply.ai

simonswords82 · 45m ago
Just sold my data management software business https://www.fundipedia.com.

Now bootstrapping https://www.minute-master.com - AI formal minute generation for regulated firms primarily in financial services space but also free to use for charities.

ml- · 1h ago
Still on a sabbatical building things I enjoy, but it's summer here so have also spent much time in my hammock with cold beers.

Most effort on https://wheretodrink.beer, collecting and cataloging craft beer venues from around the world. No ambition of being exhaustive, but aiming for a curated and substantial list. Since last month I've added a couple of minor things like maps and "where to go next" sections for each venue.

I'm debating whether or not I should add user accounts, and let people maintain venue bucket lists, venue endorsements. Also planning to reach out to the venues and ask if they agree to monthly or quarterly one-click information verification emails from us.

Other projects that receive less love are:

- https://drnk.beer, a small side project offering beer-related linkpages, and @handles for Bluesky (AT Protocol)

- https://misplacy.com, just a dumb and wrong AI landing page for now but was thinking to work towards a drop-in solution for SMBs around lost/found management.

- A platform for helping voluntary associations with repetitive administrative tasks (non-english so not linking. Trying to rank the pain points currently)

- A platform for structuring national soccer club history (initial brain dump idea phase)

- A platform for structuring writing prompts and collaborative fiction writing (initial brain dump / mockups)

For the next month or so I think I need to prioritize what to focus on after summer

Always interesting to see what others are building and doing. So thanks for sharing!

hyperbrainer · 28m ago
I have been experimenting with rendering fonts in Rust lately. I was pleasantly surprised by how simple reading the ttf file format is. The hard part, of course, is actually doing everything with the bezier curves and contours and filling the insides etc. But if I were to just be working with straight lines, I already have everything I need. Indeed, I used MATLAB's `patch` to quickly check my progress and see the major bugs in my rendering implementations, and got there within a couple hours.
cddotdotslash · 21m ago
I'm still working on https://wut.dev/ - a simpler, privacy-focused, read-only AWS resource viewer. I did a "show Reddit" post a few weeks back and it got quite a bit of interest, so doubling down with actual user feedback now.
realty_geek · 30m ago
I recently built a site for guessing house prices. I thought I'd be done with it in a week. Over a month later I still have a ton of things to work on.

You can at least play some games now though:

https://housepriceguess.com/roundup/v/holiday-destinations/p...

Enjoy. And yes that really was my wife playing one of the games for the first time in the video ;)

bloomca · 29m ago
I've been learning systems programming for a while and recently I discovered kilo[0], which inspired me to start building my own editor[1]. Not sure how far I'll go, but hopefully it will be usable -- how fun would it be to build another project of mine using my own editor?

[O] https://github.com/antirez/kilo

[1] https://github.com/bloomca/love

delduca · 16m ago
On my 2D game engine https://carimbo.site

First game in progress https://reprobate.site

Any feedback is welcome!

lowkeyokay · 59m ago
I am working on a time tracking app for tasks. I built it because I want to gain a better understanding of how I spend my working days. It's meant to be very simple. Everything is stored locally and requires no login. I don't currently plan to sync it with any backend. This isn't something that can be used to track employees — it's just for personal use.

https://www.zookeeper.fyi/

j_bum · 50m ago
Just FYI, when I open this on mobile iOS, a blank white page appears. Not sure if this is intended or not.
lowkeyokay · 47m ago
Thanks for checking it out and thanks a lot for telling. Me definitely not intended. It should work now, but I will monitor this.
alain_gilbert · 1h ago
I'm working on this programming language that compiles to Go.

The goal is to have it behave like typescript for Go, where any Go program would compile out of the box, but then you can use the new syntax.

Featuring: built-in Set/Enum/Tuple/lambda/"error propagation operators"

It also have a working LSP server and generates a sourcemap, so when you get a runtime stacktrace, it gives you the original line in your .agl file as well as the one in the generated .go file.

I recently finish porting all my "advent of code 2024" in AGL -> https://github.com/alaingilbert/agl/tree/master/examples/adv...

https://github.com/alaingilbert/agl

Yoric · 1h ago
Nice!

When I wrote Go, I figured that I would eventually have to do something like that, to fix the glaring omissions in the language. And then I stopped writing Go, but glad to see that someone got around to it!

jbreckmckye · 1h ago
I like the bang operator for propagating errors. Shame to lose multiple returns though
alain_gilbert · 1h ago
That's why there is a "Tuple" expression that you can use instead, which allows you to easily return multiple values, and destructure them as well.
Yoric · 1h ago
Well, it seems to support tuples, which are more powerful.
cwe · 19m ago
Building a 3D dating RPG: https://turnon.fun

Idea is to add a lot more NSFW stuff like sexy avatars and mocap animations, cinematic controls, even a marketplace of content and assets.

randomstate · 25m ago
I'm developing a simple video processing and generation library for Python focusing on short-form videos (think TikTok or Youtube Shorts) and ease of use for humans and AI agents https://github.com/BartWojtowicz/videopython
pacmansyyu · 1h ago
I've been working on an encrypted environment variables management tool, called kiln[1], for teams. I know, tools like age and SOPS exist, but this partly came through because of the lack of a good UX around the encryption part especially for a team-based workflow. I aim to continue building kiln as a developer-first experience, making it seamless to integrate into a large team's workflows.

The idea came to me when we were trying to find ways to manage Terraform secrets , CI vars were a no-go because people sometimes wish to deploy locally for testing stuff, and tools like Vault have honestly been a pain to manage, well, for us at least. So I have been building this tool where the variables are encrypted with `age`, have RBACs around it, and an entire development workflow (run ad-hoc commands, export, templating, etc) that can easily be integrated into any CI/CD alongside local development. We're using this and storing the encrypted secrets in Git now, so everything is version-controlled and can be found in a single place.

Do give it a try. I am open to any questions or suggestions! Interested to know what people think of this. Thanks!

[1]: https://kiln.sh

jobswithgptcom · 26m ago
lucasmqs · 36m ago
I’m working on an open source TACoS (Terraform automation and collaboration software) called Burrito. Our goal is to empower infrastructure as code with drift detection, contribution workflows and a comprehensive UI, all in a Kubernetes based software strongly inspired by ArgoCD.

https://github.com/padok-team/burrito

brink · 49m ago
I'm working on what I hope to be a high-performance voxel engine from scratch in Rust in my free-time.

https://www.youtube.com/watch?v=XlolXvBDmRY

Cubic chunks, full lighting engine, opting to be non-deterministic, everything is unsigned integer math except for rotation and rendering, multiplayer is mostly implemented, built to be able to handle heavy simulation.. the foundation work is almost done. Right now it's just a hobby to try to build the best thing I can build. I work on it because it's fun.

giorgioz · 33m ago
https://www.dbmuse.com a visual GUI for Mongo and Postgres with an Agent to ask questions about your DB for macOS. Soon also for Windows/Linux and with MCP support to let Claude Code/other LLM use your local database as a tool.
vahid4m · 1h ago
"WithAudio", a text to speech solution for Desktop.

https://desktop.with.audio

The most important features (for me) are: One Time Payment and 100% local and private. I don't send any data to any server. Just enough to verify license keys.

- Its one time payment, user can import any text, URL or ebooks and use the reader with read along text highlighting or export the audio as mp3 or m4a (audiobook specific format).

- Currently only supports MacOS with Apple Silicon I was doing Windows too but its making development slow, so I'm pausing that for now. - The most recent feature I added is Global Capture where user can setup some hotkeys to import any text and URL. Text parsing and extracting text is one of the hardest part of this. - Also, just added the a Reader view to website. Its goal is to mimic the app featuers as much as the browser limitations allow. I don't have a free Tier but a 7 days money back gurantee.

I mostly have a dev and engineering background but the most exciting aspect of this marketing and those stuff. Still trying to figure that.

I'd be happy to hear any feedback and ideas.

Edit: Only English at the moment. Adding more languages is in my plan but its very difficult for me since I don't know any other languages. But I think it would be great to add those as well.

diarmuid_glynn · 1h ago
Nice!

I'm curious, what on-device text-to-speech engine did you use?

vahid4m · 1h ago
yeutterg · 56m ago
Bedtime Bulb v2: A light bulb for use before bed that reduces blue light and adds near infrared [0]

Atmos Sleep Lamp: A bedside lamp that reduces blue light at night and wakes you up more naturally with light in the morning [1]

[0] https://restfullighting.com/products/bedtime-bulb-v2-preorde...

[1] https://restfullighting.com/products/restful-atmos-preorder

dSebastien · 28m ago
Knowii, a community of knowledge workers who want to stay relevant with or without AI:

https://store.dsebastien.net/l/knowii

codingclaws · 1h ago
My Reddit clone called Comment Castles [0].

Earlier today I implemented "bbcodes" for bold, italic, underline, em (grey background color) and strikethrough. They way it works for bold is like this: b[text here]. If you want to apply multiple you can go bui[text here] for example, which would be bold, underline and italic text.

[0] https://github.com/ferg1e/comment-castles

AbjMV · 1h ago
Working on www.lattix.app, a macOS app to launch apps and files across multiple monitors, in the layout you want them to be in. I built this for myself as a companion since I context switch a lot ( work, personal projects and hobbies ), now it's public.
fellowniusmonk · 1h ago
Two things:

1. Software: An OS that masquerades as simple note taking software.

Goal is to put an end to all the disparate AI bullshit and apps owning our data.

I solved context switching for myself ages ago and now I'm just trying to productize it outside my 3 companies internal usage.

It also solves context switching for AI agents as a byproduct.

2. Ethics: Give Ai and proto-Agi a reason not to kill us all.

An extremely minimal, empirical naturalistic moral framework that is universally binding to all agents so AI won't kill us all. I view the alignment problem as a epistemic moral grounding issue and that the current pseudo utilitarianism isn't cutting it. Divine command, discourse ethics, utilitarianism, deontology they are all insufficient.

x1MA-EGT85 · 46m ago
Would love try out and contribute to both of these! Let me know if you'd like to get in touch.
egonschiele · 32m ago
I just wrote a post about an interesting color debate in the art community:

https://www.ducktyped.org/p/a-colorful-controversy

armishra · 1h ago
An app to help you split individual receipts with a bunch of people:

https://demo.snapreceipts.fyi/

Mainly used by my friends right after we have a group lunch or dinner. You just upload a pic of the receipt after a meal and it parses out the items. We assign who got what and it calculates who owes what.

Makes the receipt splitting part super easy.

e1gen-v · 14m ago
I just tried it and I really like it! Do you think it’s gonna stay free?
jbreckmckye · 1h ago
How is the text extraction done? Tesseract?
armishra · 1h ago
I just use an LLM with a prompt (pls dont hate). Found tesseract to be very bad for text extraction.
Liriel · 46m ago
Building a developer marketing agency. No, I'm not doing anything evil, moreover, I'm trying to do things that actually make sense for devs and founders.

https://www.literally.dev/resources/marketing-to-developers-...

kbrisso · 53m ago
Byte-Vision is a privacy-first document intelligence platform that transforms static documents into an interactive, searchable knowledge base. Built on Elasticsearch with RAG (Retrieval-Augmented Generation) capabilities, it offers document parsing, OCR processing, and conversational AI interfaces.

https://github.com/kbrisso/byte-vision

gondo · 1h ago
I am bootstrapping Appio.so

Appio lets you add mobile widgets and native push notifications to your web app within minutes, without building or maintaining mobile apps, hiring developers, or dealing with app stores. You can try it at: https://demo.appio.so/

If you’re building a web-based product without a mobile app, or just want to try Appio, I’d love to chat! You can reach me directly via https://my.appio.so/ or drop a comment here.

ctas · 47m ago
A desktop environment for Linux, visually inspired by OSX Snow Leopard with a touch of contemporary. Coming with compositor, apps like dock, finder, status bar, and a UI framework like AppKit. Scratching my own itch and would love to see if it can gain traction. Still in the early innings though.
jbreckmckye · 1h ago
I just finished a YouTube video on why PlayStation had multiple names (https://youtu.be/m4rpN_oQF2s)

After that, I'm not sure. I have four big ideas:

1. (continuation) Another video, this one about my experiences writing a homebrew PSOne game

2. (useful) a command line tool (or native desktop app) that generates white noise

3. (fanciful) See if I can unpack FFVII's world map data into OBJ models and UV mapped textures. And then from there create a 3D world map in Threejs

4. (stretch) I would love an app where I could look out into the distance, and be informed what's on the horizon. Likewise ships in the sea / planes in the sky. I think it's doable with some OSM data, open APIs and a bit of high school math

seanwilson · 23m ago
I'm still working on a tool to create custom accessible Tailwind-style color palettes for web and UI designs:

https://www.inclusivecolors.com/

Example with colors from HN to play with (grey from links and the main body color, orange from the logo, green from newbie usernames): https://www.inclusivecolors.com/?style_dictionary=eyJjb2xvci...

The main features are it shows if your colors meet WCAG accessible contrast on a live UI mockup, you get quick and precise control over every color grade in a swatch (via editing HSL curves) instead of these being auto/AI generated, and it helps you create a full palette of swatches rather than just a handful of colors without tints/shades.

The idea here is to design your tints/shades upfront with accessible contrast in mind so you don't run into problems later. Most brand style guides I see only have about 5 to 10 brand colors, and when you need more tints/shades later to implement actual UIs and landing pages, you get into a conflict where you can't find contrasting colors to introduce that match the brand.

I've had interesting feedback about different workflows designers have so far. It's tricky to make a single tool that fits everyones workflow so I might end up with multiple modes e.g. easy but more opinionated, and more freeform but for advanced users.

jerlendds · 1m ago
Looks awesome! I'm using tailwind in my open source project and Ive been really struggling with accessible colors, inclusivecolors sounds like itll be perfect for me
fouronnes3 · 13m ago
Very cool project. I don't use tailwind but I have been thinking that the color palette part is great. Love that you can export it all to a big list of CSS variables.
seanwilson · 1m ago
Thanks! To clarify, it's aimed at more than just Tailwind, but Tailwind popularized the color naming like red-500, blue-100, green-900 etc. so I went with that convention.

You can just export as CSS as use in regular CSS projects e.g. via `color: var(--red-900)`, or something like `--bs-danger: var(--red-500)` for Bootstrap projects with semantic naming.

I probably need to make this more obvious, but if all your swatches have the linked/shared lightness option set, you can pick lightnesses where all grade 500 colors contrast against all grade 100 colors, all grade 600 colors contrast against all grade 200 colors etc. so when you're picking colors in CSS, you know by design which colors will contrast without having to go check them.

Yoric · 1h ago
A tool to solve optimization problems using quantum computers. Just released the first open-source version https://github.com/pasqal-io/maximum-independent-set/ . Now expanding it to more complex types of optimization problems.

Also, thinking about resurrecting http://opalang.org/. We'll see if I have the energy to work on that.

boriskourt · 1h ago
Me and another artist are having our fourth live performance of “We Wade Awake” [0] We’ve iterating on it each time, and the latest had a fully dynamic and procedural world generation using Unreal PCG. All input comes from two midi controllers, and we’ve built out a 25 minute experience of a fever dream trip through a surreal Bayou. Some videos and sound in the link.

Been fun to push Nanite and Lumen to the limit!

[0]: https://boris.kourtoukov.com/we-wade-awake-live-visual-perfo...

NoTranslationL · 1h ago
I’m working on Reflect [0], it’s a private self discovery and self experimentation app. You can track metrics, set goals, get alerted to anomalies, view correlations, visualize your data, etc.

[0] https://apps.apple.com/us/app/reflect-track-anything/id64638...

CyberMacGyver · 42m ago
Building a free service to detect fraudulent D.P.R.K job applicants. It has been going on since 2018 at least and I have flagged thousands of such applicants.
aqrashik · 1h ago
I'm working on an app[0] that makes hosting temporary PDF forms simple, without needing an account or payment. You simply add input fields over any static PDF and publish it to get a link which you can send to other people who may need to fill the form.

The form stays online for 30 days. To keep the forms online for longer, I will be offering paid plans.

[0]:https://www.signmypdf.com

ainiriand · 51m ago
I am writing a stock trading framework in Rust, you can follow my (mis)steps at https://rustquant.dev
offtotheraces · 1h ago
A tool to map your network - for fundraising, sales, partnerships, etc - to get intros to people. Cold email is dying as it gets so much cheaper and easier to send emails with AI and automation, so human connection is going to skyrocket in importance.

Would love feedback - in open alpha:

www.draftboard.com

keizo · 1h ago
Mostly been turning my side project into a cursor for notes. https://grugnotes.com
woile · 36m ago
I'm building yet another Pomodoro app. I wanted something multiplatform with low resource consumption, using the native OS styles, so it integrated well with the OS, I'm using slint for that.

It's possible to install with nix and I'm working on other package managers. I'm targeting Linux and Mac.

It has a ticking sound, and the notifications remind you to stay hydrated, stretch and walk. I've used many different Pomodoro and I'm trying to consolidate the features I like the most from each.

Right now it works quite well on Linux and it should work on Mac.

https://github.com/reciperium/temporis/

dodiggity32 · 1h ago
I've been pretty frustrated with my 3d print quality, decided to make my self an esp32 based heater control board. It connects to wifi and is based on esphome so you can automate it via home assistant. The prototype worked well enough so designing an integrated pcb and in the process of ordering it on JlCPCB
Edmond · 1h ago
"Intelligent Workspace":

https://news.ycombinator.com/item?id=44627910

In lieu of chatbots as the primary means of working with AI.

This is an approach that is human centered and intended to accommodate a wide array of possible use cases where human interaction/engagement is essential for getting work done.

Galorious · 1h ago
Just launched a little form-tool to integrate feedback gathering into all of my projects easily. Decided to make a standalone thing out of it.

As simple and personal as can be. Straight to inbox.

Optimized for coding agents DX through full customization and data appending by url parameters.

https://formvoice.com Appreciate any feedback!

thejf · 1h ago
Homebrew tabletop RPG adventure maker for multiple settings that easily lets you toggle from AI/human creation.

Also Plex for books (https://www.passagebooks.com/) but that has a much bigger scope.

ferociouskite56 · 1h ago
Confirming which Linux GUI games (Frogatto) and apps (HandBrake) work on top of Android Terminal. https://www.androidauthority.com/linux-terminal-graphical-ap...
aqeelat · 1h ago
Trying to vibe code a tool that provides a better navigation of github releases for monorepos. I wanted to use this project to as a way to experiment with ai coding agents (Junie), sveltekit, GraphQL, and Cloudflare workers.
Joel_Mckay · 9m ago
Simple fully 3D print-in-place parametric defined skate wheel mechanism.

Part of another odd project, and testing how long the material holds up. =3

mmarian · 2h ago
Just writing about learnings from failed startup attempts: https://developerwithacat.com

Might start doing a few posts on Cloudflare WAF as I've been working with it extensively lately. Maybe it'll help me uncover some startup ideas in that space.

hg30 · 17m ago
Working on The Card Caddie (thecardcaddie.com) free credit card recommendation site + extension with no personal credit card info. Never miss a point again!

(Built for fun as I optimized my daily spending to get a year's worth of flights for free and friends wanted it haha)

contingencies · 14m ago
Fundraising for a giant robot factory.
elpakal · 48m ago
iOS apps size analysis app you can run on your Mac https://dotipa.app
hecanjog · 1h ago
Cleaning up the aftermath of a fairly large refactor of my computer music system this weekend.
90s_dev · 1h ago
90s.dev.

Well, kind of.

I've been working a ton on some variations and ports of it over the last couple months, but the problem is that I need funding.

So my plan is to setup github sponsors, where for each project people want me to work on, they can donate any amount, and for each $25, I'll work one hour on that project. It'll have a few related projects that all come from a unified vision I have for 90s.dev -- to be a full platform that recreates 90s-era development, from dos and qbasic, to win3 and vb3, not to mention assemblers for those who want it (see my show-hn about hram.dev).

90s_dev · 1h ago
Wow, as soon as I post, my comment is second to the bottom.
chistev · 1h ago
lol
gametorch · 50m ago
https://gametorch.app

It's an AI video game sprite animator.

risyachka · 52m ago
The easiest way to share development iOS (ipa) or Android (apk) builds Free to use

https://appsend.dev

flappyeagle · 55m ago
im working on replacing as many lame jobs as possible so humans dont have to do them anymore