Show HN: a Rust, Wayland, Vulkan 3D CRT, screencast application, retroarch cores
crtulum A CRT you can hold in your hands, minus the 70 pounds of leaded glass and the risk of the flyback transformer killing you in your garage. It's a Wayland app that grabs another program's output — RetroArch, a terminal, a browser, a video player, whatever — the same way OBS does window capture, and paints it onto a 3D Trinitron you can spin around with the mouse. An actual tube, sitting in your compositor, that you can orbit and zoom until the glare slides across the glass the right way.
- ▪crtulum A CRT you can hold in your hands, minus the 70 pounds of leaded glass and the risk of the flyback transformer killing you in your garage.
- ▪It's a Wayland app that grabs another program's output — RetroArch, a terminal, a browser, a video player, whatever — the same way OBS does window capture, and paints it onto a 3D Trinitron you can spin around with the mouse.
- ▪An actual tube, sitting in your compositor, that you can orbit and zoom until the glare slides across the glass the right way.
Hacker News (Show HN) files mainly under programming. We currently carry 68 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
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Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | GitHub |
| Canonical URL | https://github.com/andrewfader/crtulum |
| Publication time | Mon, 27 Jul 2026 03:26:44 +0000 |
| Retrieval time | 2026-07-27T05:52:34.332Z |
| Last seen | 2026-07-27T05:52:34.332Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | OFvsa9-hW_iw · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
crtulum A CRT you can hold in your hands, minus the 70 pounds of leaded glass and the risk of the flyback transformer killing you in your garage. It's a Wayland app that grabs another program's output — RetroArch, a terminal, a browser, a video player, whatever — the same way OBS does window capture, and paints it onto a 3D Trinitron you can spin around with the mouse. Not a fullscreen filter. An actual tube, sitting in your compositor, that you can orbit and zoom until the glare slides across the glass the right way. Build & run Current Rust toolchain (system rustup, stable). Then: cargo run -- --capture That pops the screencast picker. Point it at something. It lands on the tube.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.