We are building an agentic ad tech system optimized for real time and scale. The process of making an ad, from ideation to distribution, is traditionally exceptionally labor intensive. We are making it possible to target, design, and distribute ads at scale and in real time. https://hawtads.com
Ask HN: What Are You Working On? (March 2026)
281–290 of 1001 posts
Re: Ask HN: What Are You Working On? (March 2026)
#282Re: Ask HN: What Are You Working On? (March 2026)
#283Re: Ask HN: What Are You Working On? (March 2026)
#284PC Part Picker for hi-fi stereos: https://buildhifi.com/ I've wanted this for a long time, so I finally started building it. I've had a lot fun! - Graph-based signal flow: Products become nodes, connections are edges inferred from port compatibility (digital, analog, phono, speaker-level domains) - Port profile system: Standardized port definitions (direction, domain, connector, channel mode) enable automatic connect…
Re: Ask HN: What Are You Working On? (March 2026)
#285Im building https://trypixie.com to legally employ my 7 year old child, save on taxes and contribute to her Roth IRA. Im also building https://www.keepfiled.com , a microsaas to save emails (or email attachments) to google drive I almost forgot, I also built https://statphone.com - One emergency number that rings your whole family and breaks through DND. I love building. I built all these for myself. unfortunately I…
Re: Ask HN: What Are You Working On? (March 2026)
#286https://feedbun.com - a browser extension that decodes food labels and recipes on any website for healthy eating, with science-backed research summaries and recommendations.
https://rizz.farm - a lead gen tool for Reddit that focuses on helping instead of selling, to build long-lasting organic traffic.
https://persumi.com - a blogging platform that turns articles into audio, and to showcase your different interests or "personas".
Re: Ask HN: What Are You Working On? (March 2026)
#287Re: Ask HN: What Are You Working On? (March 2026)
#288Tech details: I found that used, small form-factor Dell Optiplexes are great for product protoytyping. I'm in Medellin Colombia, and found that you can buy these for about $200 USD - they are often former Point of Sale (POS) or office computers, from about 10 years ago. They have SSDs, run quiet, and are very reliable.
For project Affirmator, I installed Linux Mint Debian Edition (LMDE). Using Cron and Mpv to shuffle-play activity-specific folders of MP3s at the same time each day. For example, for the chill jazz music - I've got a folder of 40+ song MP3s. Cron plays those at 06:30. So it's like a calm, upbeat alarm clock. I'm not a morning person, so this is a "friendly" way for me to wake myself up!
For the vocal affirmation part - I built a Python tool that reads 200+ text affirmations from a markdown/text file. It then uses AWS Polly text-to-speech API to vocalize the affirmations into MP3s. Next, I use `ffmpeg` to add a variable silent spacer gap to the ends of all the MP3s. This allows your to hear a voice affirmation ("I am fit, athletic, and strong!", "I am a confident piano player."), and then there is silent space for you to say it out loud, or repeat in your head.
This project incorporates ideas & routines from: The Strangest Secret by Earl Nightingale, Tony Robbins Personal Power II, Think and Grow Rich by Napoleon Hill, and Atomic Habits by James Clear
https://codeberg.org/jro/Affirmator-app
(2) PROJECT "LINGOFREQ" - Language learning tool. Uses language-specific high-frequency word lists. Generates example sentences according to a theme/topic. Translates the word & example phrases to English / Spanish / Chinese. Uses Text-to-speech to vocalize the phrases into each language. These phrases are ordered by frequency. When you want to improve your language skills, you set a "window" range of frequency you want to practice, and Lingofreq will play audio files in this range. You can learn Chinese & Spanish while doing the dishes, at the gym, or before going to bed!
Code: https://codeberg.org/jro/LingoFreq-app/src/branch/main/apps
(3) Medellin COMMUNITY MAKER-SPACE / CREATIVE ENTREPRENEUR LAB I'm at Medellin Colombia - my mission is to create the best maker-space. I was a member of ASMBLY Maker-space in Austin Texas (great space!) and worked at Pivotal Labs (agile product prototyping / software lab) - so I'm aiming to combine the best ideas from those.
BACK-BURNER projects:
Documenting my Knowledge as "Public Knowledge Base" - https://codeberg.org/jro/Knowledge - Here are my notes on Python, Git - I'm bouncing between Obsidian Sync / Publish / Markdown (currently easiest way), and some sort of open-source knowledge base website (VSCodium + Markdown + FOAM + MkDocs + RClone). I haven't found a solution I'm happy with yet...
Open-source CNC router tech stack: - I have a CNC router (robotic drill which can carve 3D shapes into wood). Last year I challenged myself to operate it completely through an open-source tech stack. This took me on a journey of learning Inkscape (2d vector design tool, SVG), FreeCAD (3D product design / CAD / CAM tool), G-code (format of text instructions which tell CNC tools where to move and what to do), Universal G-Code Sender (a tool which imports CAM - computer aided manufacturing - designs, connects to the CNC router tool, and actually operates machine. It's quite exciting to play with! Used Kiri-moto (web-based CAD / CAM tool) to convert 2D/SVG designs into 3D shapes). Used OBS (screen recording/streaming tool) and a bunch of web-cams to live-stream tool usage to PeerTube Live (similar to YouTube).
Being "principled" about using open-source tools can be so challenging, but its quite rewarding on the long run.
LEARNING SPANISH - What's working for me... trying to read spanish books before bed. Handwriting a few paragraphs from a book into journal. Highlighting words I don't know. Looking them up later. Reading a book while listening to its audio book at the same time.
If anyone's interesting in contributing to these projects, I would warmly welcome that. Design, product, sales, project management, engineering/coding, marketing - need tons of help in all these areas.
Gracias! // JRO
Re: Ask HN: What Are You Working On? (March 2026)
#289It basically pulls OpenTelemetry data from your infra and renders chernoff faces, so you can spot anomalies at a glance.