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Show HN: A luma dependent chroma compression algorithm (image compression)

https://www.bitsnbites.eu/a-spatial-domain-variable-block-size-luma-dependent-chroma-compression-...
26•mbitsnbites•3d ago•2 comments

Show HN: I saw this cool navigation reveal, so I made a simple HTML+CSS version

https://github.com/Momciloo/fun-with-clip-path
48•momciloo•7h ago•9 comments

Show HN: Browser based state machine simulator and visualizer

https://svylabs.github.io/smac-viz/
8•sridhar87•4d ago•3 comments

Show HN: Django-rclone: Database and media backups for Django, powered by rclone

https://github.com/kjnez/django-rclone
2•cui•1h ago•1 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
294•isitcontent•1d ago•39 comments

Show HN: Kappal – CLI to Run Docker Compose YML on Kubernetes for Local Dev

https://github.com/sandys/kappal
44•sandGorgon•2d ago•20 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
362•eljojo•1d ago•218 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
374•vecti•1d ago•171 comments

Show HN: Witnessd – Prove human authorship via hardware-bound jitter seals

https://github.com/writerslogic/witnessd
2•davidcondrey•2h ago•1 comments

Show HN: PalettePoint – AI color palette generator from text or images

https://palettepoint.com
2•latentio•3h ago•0 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
97•antves•2d ago•70 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
85•phreda4•1d ago•17 comments

Show HN: Artifact Keeper – Open-Source Artifactory/Nexus Alternative in Rust

https://github.com/artifact-keeper
156•bsgeraci•1d ago•65 comments

Show HN: I built a <400ms latency voice agent that runs on a 4gb vram GTX 1650"

https://github.com/pheonix-delta/axiom-voice-agent
2•shubham-coder•6h ago•1 comments

Show HN: BioTradingArena – Benchmark for LLMs to predict biotech stock movements

https://www.biotradingarena.com/hn
29•dchu17•1d ago•12 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
55•nwparker•2d ago•12 comments

Show HN: Stacky – certain block game clone

https://www.susmel.com/stacky/
3•Keyframe•7h ago•0 comments

Show HN: A toy compiler I built in high school (runs in browser)

https://vire-lang.web.app
3•xeouz•7h ago•1 comments

Show HN: Gigacode – Use OpenCode's UI with Claude Code/Codex/Amp

https://github.com/rivet-dev/sandbox-agent/tree/main/gigacode
23•NathanFlurry•1d ago•11 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
18•denuoweb•2d ago•2 comments

Show HN: Nginx-defender – realtime abuse blocking for Nginx

https://github.com/Anipaleja/nginx-defender
3•anipaleja•9h ago•0 comments

Show HN: Micropolis/SimCity Clone in Emacs Lisp

https://github.com/vkazanov/elcity
173•vkazanov•2d ago•49 comments

Show HN: MCP App to play backgammon with your LLM

https://github.com/sam-mfb/backgammon-mcp
3•sam256•11h ago•1 comments

Show HN: I'm 75, building an OSS Virtual Protest Protocol for digital activism

https://github.com/voice-of-japan/Virtual-Protest-Protocol/blob/main/README.md
9•sakanakana00•12h ago•2 comments

Show HN: Horizons – OSS agent execution engine

https://github.com/synth-laboratories/Horizons
27•JoshPurtell•1d ago•5 comments

Show HN: I built Divvy to split restaurant bills from a photo

https://divvyai.app/
3•pieterdy•12h ago•1 comments

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
14•toborrm9•1d ago•8 comments

Show HN: Falcon's Eye (isometric NetHack) running in the browser via WebAssembly

https://rahuljaguste.github.io/Nethack_Falcons_Eye/
7•rahuljaguste•1d ago•1 comments

Show HN: Local task classifier and dispatcher on RTX 3080

https://github.com/resilientworkflowsentinel/resilient-workflow-sentinel
25•Shubham_Amb•2d ago•2 comments

Show HN: Slop News – HN front page now, but it's all slop

https://dosaygo-studio.github.io/hn-front-page-2035/slop-news
22•keepamovin•17h ago•6 comments
Open in hackernews

Show HN: HUD-like live annotation and sketching app for macOS

https://draw.wrobele.com/
56•tomaszsobota•3mo ago
Hey all!

I'm happy to announce we've finally released our 2nd macOS app, Draw Over It, a tiny desktop app that enables drawing, highlighting, or annotating directly on top of anything on your Mac.

I've always wanted something like this for instant and unobtrusive sketching and annotation for pair programming and demos. I always found the standard web-based diagram and drawing tools a bit too cumbersome. So we built a simple overlay that could appear over any window or app with one shortcut.

It doesn't collect any user data and doesn't require any system permissions - it's sandboxed. It all stays on your device. You can export your annotations to a PNG with one click - or just take a screenshot if you need the background too.

It offers a slim but functional toolkit for every day tasks:

- Global hotkeys, hit a shortcut and start drawing over any app

- Multiple tools, pens, shapes, highlighters

- Per-screen canvases, each monitor gets its own space

- Focus mode, temporarily blur the background to emphasize what matters

- Low footprint, no subscriptions, no sign-ups, no data collected

- Localization, the app is translated to 14 languages

These two reasons make it different from other canvas apps, it's simple, lean and keeps your data on-device only.

It’s a one-time purchase ($2.99) on the Mac App Store.

I’d love feedback and suggestions for improvements!

Comments

TuringNYC•3mo ago
i'd love this for the iPad, i'd buy it right away but didnt see it for the iPad -- mostly because writing with a mouse is very difficult, but pens are easy
tomaszsobota•3mo ago
And I'd love to make it for iPads too, just struggling to find the optimal UX for enabling and disabling the overlay.

On macOS you can just use the global hotkey or the app menu, on iPad I'd have to wire it up somehow else - supper happy to get ideas on what would feel seamless and unobtrusive for you. I'll definitely implement it then!

lasergyro•3mo ago
What about a control center toggle? Works alright for toggling the windowing system. In general having shortcuts to set it on/off/toggle would be great.
tomaszsobota•3mo ago
This might work! I'll implement this and see how it feels, thanks.
huydotnet•3mo ago
You can connect your iPad to mac via the charger cable and use it as an external monitor. Apple Pencil works too.
alsetmusic•3mo ago
The letters keep drawing after the mouse pointer stops moving. Is there such thing as an autocompleting typeface that recognizes handwriting from a Wacom tablet or something to explain this? If not, this demo doesn't seem authentic and that doesn't inspire confidence.
tomaszsobota•3mo ago
Hey, thanks for the feedback, the cursor movement is smoothed out in the screen recording tool.

I tried to strike a balance, original videos felt a bit too distracting with unfiltered cursor movements.

alsetmusic•3mo ago
I think you should indicate this above or below the demo in a smallish typeface. Your explanation makes sense, but the presentation comes off as sketchy without that info. Maybe it's just me. Thanks for responding.
tomaszsobota•3mo ago
That is a great idea! I'll add that, thank you :)
raju•3mo ago
I've been a VERY happy customer (no affiliation whatsoever) of Presentify for many years now, which was also a "Show HN" post (yeesh) 5 years ago

https://news.ycombinator.com/item?id=22938604

I am very excited to try Draw Over It—thank you for sharing. I speak at several conferences a year, and also do online workshops and training, and Presentify has been a godsend.

However, the one limitation is if you toggle it, you lose your annotations. And you can't do anything with the underlying app—can't scroll or click buttons. Looking forward to trying this out.

tentacle256•3mo ago
Thank you for your kind words! Indeed, I wanted the sketch to remain on-screen after disabling it too - in Draw Over It you can toggle whether you want it to remain on-screen or not :)
K3UL•3mo ago
Is there any plan for a Windows version ? This is so useful
tomaszsobota•3mo ago
Thank you! Yes, a Windows release is coming! Perhaps not for at least a month but it's definitely on my roadmap :)
alyxya•3mo ago
I really like the homepage. It’s clear what the product does just after a few seconds and looks nice and smooth :)

I’m curious if the annotation handles things like scrolling within a webpage. That would be a really cool feature if annotations automatically moved with the scroll.

tomaszsobota•3mo ago
Thank you for the feedback! At the moment it's not scroll-aware, but it's an excellent idea, thank you.

I won't be able to make it app-aware, given the very rigid security posture (complete sandbox), but I may be able to make it scroll-aware, so at least within the same window it'd move relative to the 'global' position. I'll look into it :)

neilellis•3mo ago
Great, perfect, bought it.
tomaszsobota•3mo ago
Thank you! I'd love to know about your experience using it. If you have any questions, comments, feature ideas, feel free to reach out via the support email :)
TaqPolymerase•3mo ago
Super useful and a great price. Added to my Login Items and remapped some of the extra modifier keys on my Keychron Q11 for even easier access to Draw/HUD. Perhaps one nice-to-have would be an indicator that 'Draw' is active so I know what my next click is going to do (maybe the menu icon changes?). Thank you!
tomaszsobota•3mo ago
Thank you for your feedback! That's a great idea, I'll look into it :)