Evidence-first research

Show HN: Janus – Go binary that runs GGUF models via Vulkan on AMD/Intel/Nvidia

Show HN: Rhun, an open-source code editor written in assembly

I found that I'm not using even 1/3 of vim/vscode features anymore. That's wht I'm building rhun - a small code editor for Linux, Windows and Apple silicon Macs. It obviously has Vim mode, a terminal, Git diffs and a panel for Claude Code or Codex sessions. The editor and pixel renderer share an x86-64 assembly core. For Apple silicon, a build-time translator converts that core to AArch64, with separate platform adapters around it. The latest release can draft commit messages using a local Ollama model or an existing Claude Code or Codex subscription. It's a solo project, MIT licensed and still early.

Show HN: What 482 hospitals charge vs. what insurers pay, from their own files

US hospitals must publish a machine-readable file of their prices, including the rate they've negotiated with each insurer. The files are huge (one is 36GB), in four formats and often messy, so almost nobody reads them. I built a crawler that finds each hospital's official file and pulls out 29 common services. Across 482 hospitals: a moderate ER visit is listed at a median $1,285 while insurers pay $288; a metabolic panel is listed at $207 while insurers pay $11.46. To keep it honest: only per-service fee-schedule dollar rates count (no case rates or percentages, which cover a whole visit), each figure needs at least 3 insurers, and every value is checked against Medicare reference rates. Surgery is excluded because insurer surgery rates cover the whole operation while the list price is one line item. Each hospital page links its source file. Feedback on the methodology is very welcome.

I made Zizeg, a Mac Markdown editor with editable Preview and Source side by side

I built Zizeg, a native macOS Markdown editor. # Problem About a year ago, I started using Claude and ChatGPT heavily and often ended up with Markdown documents. Reading them was manageable, but making small corrections was more awkward than I expected. In the tools I tried, I could see the word or number I wanted to change in Preview, but had to find it again in raw Markdown to edit it. I did not want another round with AI just to fix that. So I started building an editor where I could change the rendered document directly. Friends had the same problem, which encouraged me to share it more widely. In Zizeg, **Preview and Source are both editable, side by side, and stay in sync**. You can also use either view alone. Open a `.md` file from Finder and keep working with that file, without an account, vault or import step. It also exports to PDF and HTML, and blocks remote images until you choose to load them. Zizeg itself does not use AI. [Mac App Store](https://apps.apple.com/app/id6800761262) · Requires macOS 14 or later. Viewing is free; editing and export are paid. # Comparison Typora offers visual editing and a source mode, but does not keep an editable source pane beside the rendered document. Ferrite also has editable raw and rendered views and is free and open source. Its macOS support is currently experimental. Zizeg is built specifically for Mac and distributed through the Mac App Store. # Pricing Opening and viewing files is free. Editing and export can be unlocked wi

Show HN: Breadcrumb, record everything on your mac + context manager for AI

Hi HN, I'm Justin. Breadcrumb records everything you do on your Mac (screen + meetings + AI transcripts + what you and your AI decided) and turns it into memory your AI can search. It's local and encrypted. You can also teach it rules by talking to it and it makes sure the right rules turn up in the right context. Works with Claude Code / Codex / Cursor / opencode. All of this is exposed to your AI as 30+ MCP tools (here's the definitions): https://innerloop.works/breadcrumb/mcp I started it in June because I wanted to understand what was going on with my AI dev work. Then it just kept growing as I jammed on it 10 hours a day for 3 months. I started by recording every screen so I could jump back to a moment and see what I'd been doing with the AI. Then I added MCP so the AI could search it. Then time tracking. Then meetings with transcripts and timestamped screenshots. After that I started feeding the data back in. At first it was just a few relevant memories in the prompt. Then I started adding rules and rules modules. Then I started recording the AI transcripts and all the other stuff the AI did (subagents, tools etc). I wanted a complete record so I could go back and see what the AI did and why. I found the more data the AI had the more useful it became. One example. I got off a zoom call with the team at the day job and said: "Review the meeting I just had, find all the bugs we discussed, and create JIRA tickets with screenshots." It rea

Ask HN: Email leaked while traveling abroad?

I am an American who recently visited Europe for a vacation. I visited several countries and ended the trip in Germany. Within a week of getting back home I received an email that was in German to an email address that I have never used in a web form and have only used a few times for emailing someone (back in 2017). The email address has received zero inbound emails except for this one. This is on Fastmail where I have dozens of email addresses that are context based and then to take it even further I almost always use an on-the-fly alias. I have never received an email to the email address in question which I've had for 10 years except for this one instance immediately after visiting Germany. I traveled with a Verizon locked iPhone 17 and had Verizon international add-on. My phone has nearly no apps on it with the exception of the iOS Fastmail app and a few small open source non-bloated apps. I do not believe this is a coincidence. Any thoughts on what took place, how this happened? Additional thoughts and clarification: 1. I checked the raw message and it was indeed sent to an email address that I've never used in a web form and have never received an inbound email to. 2. The email address in question is very unique and isn't something that could potentially just be guessed by spammers. 3. I haven't received an email to this email in question since. 4. The email address in question I have never used an on-the-fly alias (<alias>@<user>.<domain>.<tld>) 5. I didn't click on t

I added a faster way to move data between apps: paste a whole sequence into a table, or turn spreadsheet cells into a paste queue

Hi I’ve been working on a new update to **Sequence Paste** in Pastea. The problem I kept running into was moving structured information between apps. Maybe the name and email are in an email, the company and role are in a CRM, and all of it needs to end up in Google Sheets. Normally it becomes: copy → switch → paste → go back → repeat. So I built Sequence Paste around doing that workflow in both directions. **Problem** You can copy the information you need from different apps first and build a sequence. Now, if the destination is a spreadsheet, you don’t have to paste every item manually anymore. Right-click the sequence and choose **Paste in Table**, and Pastea inserts the whole sequence into the table in one action. It also works the other way around. If you have a column in Google Sheets that needs to go into separate fields in a CRM, select the whole column and copy it once. Pastea splits the copied cells into individual Sequence Paste items. Then you can move through the CRM and keep using the same paste shortcut: Name → paste Email → paste Company → paste Role → paste Each paste automatically advances to the next item. You can also reorder or remove items before you start. So the workflow can basically go: **Different apps → Sequence → Table** or **Table → Sequence → Different app fields** I recorded a short video showing both workflows. **Comparison** I’ve used apps like **Paste, PastePal, and Maccy** as references for clipboard history. They’re great for finding and r

[MAS] Cirrus: floating notes that open over any app and live in your notch (Free Pro for the first 20)

Hi [r/macapps](https://www.reddit.com/r/macapps/), I'm the developer of Cirrus. **Problem** I used Raycast Notes for years because a note one hotkey away is the best way to jot something down. But it stops at 5 notes unless you pay $8 a month for Raycast Pro, and it has no links between notes, images, tables or math, so I built my own. **What it does** \- Press ⌃⌘N in any app and a note floats over it. Esc (or clicking away) hides it. \- Or keep it in a small pill on the screen edge, or in the notch on a MacBook. Hover to peek and type straight in. \- Markdown with the symbols hidden: checklists, highlights, tables, images, code. \- \[\[Links\]\] between notes, #tags, fold headings, ⌘K command palette, ⌘P to find any note. \- Math as you write: end a line with = for the answer, with units, dates, time zones and currencies. \- Paste Mode collects everything you copy into one note. \- Syncs through your own iCloud. No account, no analytics. Markdown export and daily backups. **Comparison** \- Raycast Notes: the closest thing, and what I used before. If you already pay for Raycast Pro and only need plain notes, stick with it. Otherwise its free tier stops at 5 notes and unlimited is $8/month. Cirrus is $4.99 once and adds \[\[links\]\], images, tables, math, and the edge pill and notch. \- Antinote: better if you want throwaway scratch notes and nothing else. Cirrus keeps your notes, with links, tags and search. **Pricing** Free for 3 notes with every feature. Pro is $4.99 once

Show HN: Breadcrumb, record everything on your mac + context manager for AI

Hi HN, I'm Justin. Breadcrumb records everything you do on your Mac (screen + meetings + AI transcripts + what you and your AI decided) and turns it into memory your AI can search. It's local and encrypted. You can also teach it rules by talking to it and it makes sure the right rules turn up in the right context. Works with Claude Code &#x2F; Codex &#x2F; Cursor &#x2F; opencode. All of this is exposed to your AI as 30+ MCP tools (here's the definitions): https:&#x2F;&#x2F;innerloop.works&#x2F;breadcrumb&#x2F;mcp I started it in June because I wanted to understand what was going on with my AI dev work. Then it just kept growing as I jammed on it 10 hours a day for 3 months. I started by recording every screen so I could jump back to a moment and see what I'd been doing with the AI. Then I added MCP so the AI could search it. Then time tracking. Then meetings with transcripts and timestamped screenshots. After that I started feeding the data back in. At first it was just a few relevant memories in the prompt. Then I started adding rules and rules modules. Then I started recording the AI transcripts and all the other stuff the AI did (subagents, tools etc). I wanted a complete record so I could go back and see what the AI did and why. I found the more data the AI had the more useful it became. One example. I got off a zoom call with the team at the day job and said: "Review the meeting I just had, find all the bugs we discussed, and create JIRA tickets with screenshots." It rea

Ask HN: Email leaked while traveling abroad?

I am an American who recently visited Europe for a vacation. I visited several countries and ended the trip in Germany. Within a week of getting back home I received an email that was in German to an email address that I have never used in a web form and have only used a few times for emailing someone (back in 2017). The email address has received zero inbound emails except for this one. This is on Fastmail where I have dozens of email addresses that are context based and then to take it even further I almost always use an on-the-fly alias. I have never received an email to the email address in question which I've had for 10 years except for this one instance immediately after visiting Germany. I traveled with a Verizon locked iPhone 17 and had Verizon international add-on. My phone has nearly no apps on it with the exception of the iOS Fastmail app and a few small open source non-bloated apps. I do not believe this is a coincidence. Any thoughts on what took place, how this happened? Additional thoughts and clarification: 1. I checked the raw message and it was indeed sent to an email address that I've never used in a web form and have never received an inbound email to. 2. The email address in question is very unique and isn't something that could potentially just be guessed by spammers. 3. I haven't received an email to this email in question since. 4. The email address in question I have never used an on-the-fly alias (<alias>@<user>.<domain>.<tld>) 5. I didn't click on t

I added a faster way to move data between apps: paste a whole sequence into a table, or turn spreadsheet cells into a paste queue

Hi I’ve been working on a new update to **Sequence Paste** in Pastea. The problem I kept running into was moving structured information between apps. Maybe the name and email are in an email, the company and role are in a CRM, and all of it needs to end up in Google Sheets. Normally it becomes: copy → switch → paste → go back → repeat. So I built Sequence Paste around doing that workflow in both directions. **Problem** You can copy the information you need from different apps first and build a sequence. Now, if the destination is a spreadsheet, you don’t have to paste every item manually anymore. Right-click the sequence and choose **Paste in Table**, and Pastea inserts the whole sequence into the table in one action. It also works the other way around. If you have a column in Google Sheets that needs to go into separate fields in a CRM, select the whole column and copy it once. Pastea splits the copied cells into individual Sequence Paste items. Then you can move through the CRM and keep using the same paste shortcut: Name → paste Email → paste Company → paste Role → paste Each paste automatically advances to the next item. You can also reorder or remove items before you start. So the workflow can basically go: **Different apps → Sequence → Table** or **Table → Sequence → Different app fields** I recorded a short video showing both workflows. **Comparison** I’ve used apps like **Paste, PastePal, and Maccy** as references for clipboard history. They’re great for finding and r

[MAS] Cirrus: floating notes that open over any app and live in your notch (Free Pro for the first 20)

Hi [r/macapps](https://www.reddit.com/r/macapps/), I'm the developer of Cirrus. **Problem** I used Raycast Notes for years because a note one hotkey away is the best way to jot something down. But it stops at 5 notes unless you pay $8 a month for Raycast Pro, and it has no links between notes, images, tables or math, so I built my own. **What it does** \- Press ⌃⌘N in any app and a note floats over it. Esc (or clicking away) hides it. \- Or keep it in a small pill on the screen edge, or in the notch on a MacBook. Hover to peek and type straight in. \- Markdown with the symbols hidden: checklists, highlights, tables, images, code. \- \[\[Links\]\] between notes, #tags, fold headings, ⌘K command palette, ⌘P to find any note. \- Math as you write: end a line with = for the answer, with units, dates, time zones and currencies. \- Paste Mode collects everything you copy into one note. \- Syncs through your own iCloud. No account, no analytics. Markdown export and daily backups. **Comparison** \- Raycast Notes: the closest thing, and what I used before. If you already pay for Raycast Pro and only need plain notes, stick with it. Otherwise its free tier stops at 5 notes and unlimited is $8/month. Cirrus is $4.99 once and adds \[\[links\]\], images, tables, math, and the edge pill and notch. \- Antinote: better if you want throwaway scratch notes and nothing else. Cirrus keeps your notes, with links, tags and search. **Pricing** Free for 3 notes with every feature. Pro is $4.99 once

Protego for Reddit update: Reveal Mode, saving videos, sharing comments as images, and more of what you asked for 🛡️

[App Store](https://apps.apple.com/us/app/protego-for-reddit/id6737959724) | [getprotego.app](https://getprotego.app) Hey everyone, Edgar here. I'm the developer of **Protego for Reddit**, which is a Safari extension that filters Reddit's website, hides useless clutter, and gives you useful tools. I posted about the v3 release here in July and many of you left ideas and feature request comments, I spent the last few months working day and night to make these happen. **Problem:** I mainly use Reddit for photography, fitness, tech and video games. Around fall 2024 all of my feeds got taken over by political content or arguments. I'm not a fan of Reddit's official app. It doesn't let you filter by keyword and shows endless ads/promoted posts. So I uninstalled the app and decided that if I was going to keep using Reddit it would be through a browser or not at all. That's when I decided to learn a new skill and build my own Safari extension to take control of how I consume Reddit on the web. The first version of Protego was fairly barebones, it contained exactly what I needed and nothing more: keyword filtering and promoted post/ad filtering. Over time it became more feature complete, adding filter support not only for keywords but also for communities, users, and websites, hiding the parts of the page you don't want such as useless graphics/animations/AI/games, and limiting access to Reddit as a whole in order to curb doom scrolling. **Some of what you asked for:** * **See what p

Kirocast - The macOS screen recorder built for AI!

Hi friends of [r/macapps](https://www.reddit.com/r/macapps/), I am Gabrielle, I am an ex product manager and product designer who worked at both startups and MNCs. After a few yers at a French MNC, I decided it was time to take the leap and develop, with my partner, Kirocast! My partner is a Python/Rust dev, and we thought it would be a great challenge to build something native to MacOS since we love the ecosystem so much. We started Kirocast back in March 2026 while I was working at a large company trying to create small videos for internal comms. I didn't like existing screen recorders and I kept manually recording the videos each time we would make an update! So here we are. **Problem** Showcase videos **need to keep up with your product**. When the UI changes, that often means recording another take. With Kirocast, the idea is simple: **give your AI agent a script and let it record for you**. When something changes, ask for a fresh take. It’s a **macOS screen recorder with MCP integration**, plus manual capture, motion, zooms, and auto annotations. **If you also want to do it manually,** you have a nice **Liquid Glass editor** helping you do so! Kirocast is my everyday companion. It helps me work visually with agents (with a feature called talk mode), debug, and automate videos. I’m building the tool I want by my side, and I hope you’ll enjoy working with it too! Happy to answer questions, and thanks for taking a look! ❤️ Ps. We launched today on PH, help us get on the ma

40 years of writing code. I didn't see the end coming

So I started programming when 'the cloud' was something about the weather and code was shipped on floppy disks. For over 4 decades I've loved writing every line of code. But now, AI writes most of the code. The advantages of course are many, not the least of which is that I'm able to build and maintain multiple products at once. But instead of coding, I've turned into a full time reviewer instead. Spending the day reading, questioning and correcting AI is tiring in it's own specific way. Worst of all, I no longer enjoy the satisfaction of solving hard problems on my own anymore. For those of you in the same boat, what's your feeling? Has AI given you back your time? Or has it taken something away that you loved?

Vitals: an Activity Monitor alternative that tells you which app is the problem

Hey r/macapps, I'm Atta, the developer of Vitals. **Problem** When my Mac got slow, the fans got loud or the battery dropped fast, I'd open Activity Monitor to find out why. I never could. It shows about a thousand rows with names like "Google Chrome Helper (Renderer)", and nothing tells you which app they belong to or whether you should worry. So I built Vitals to answer one question: which app is doing this, and what can I do about it? It puts everything under the app it belongs to. Instead of a thousand rows, you see about 60 apps you recognize, each with how much memory, battery and processing it's using. Chrome is one row, not forty. What that means day to day: \- Your Mac feels slow: open the menu bar and see which app is the cause. Quit it from there with one click, even if it's frozen. \- Your browser is eating memory: click it and see which tab is responsible. \- Your battery is draining or your fans won't stop: see what's behind it, and what has been keeping your Mac awake. \- Something happened while you were away: look back through 30 days of history. \- An app starts misbehaving: Vitals tells you with a notification, so you don't have to keep checking. If you're a developer, it also shows the servers and Docker containers you forgot to stop. I've attached a short video showing the same Mac in Activity Monitor and in Vitals. About 1,100 people use it now, and a lot of what shipped since launch came from their emails. **Comparison** Activity Monitor tells you what'