VoxVera

VoxVera is a static, Nostr-powered flyer client.

The active app lives at the site root (site/). It lets anyone author flyer content, publish it as a public Nostr event, and re-render or reprint the flyer later from a Nostr address or event ID — no application server. The frontend is intentionally self-contained: Nostr relays store the content, and any static host can serve the client.

The previous Tor/OnionShare CLI version is preserved on the legacy-tor branch.

Features

• Author and publish. Fill in the flyer fields and publish them as a Nostr 30078 parameterized replaceable event. Republishing with the same flyer name replaces the previous version.
• Anonymous by default, your identity if you want it. The editor signs flyers under one of four identities: an anonymous per-device key (default, no setup), a NIP-07 browser extension (your secret never touches the page), an imported nsec, or a NIP-46 remote signer (paste a bunker:// link or scan a nostrconnect:// QR with your signer app — your secret stays in the app, the browser holds only an ephemeral key; session-only). An imported key signs in-memory for the session; tick "Remember on this device" to keep it, encrypted with a PIN (PBKDF2 → AES-GCM) — the plaintext secret is never stored. A short PIN is a convenience lock, not protection against a targeted attacker (see the spec); the extension and remote-signer paths are stronger.
• Publish confirmation. After signing and publishing, a modal shows the new flyer's URL to copy, so authors know they're done and where to find it (localized, like everything else).
• Edit, re-publish, and delete your flyers. Because flyers are replaceable events, the author can edit one in place (same key + Flyer Name keeps the same URL), re-publish it as a keep-alive so relays don't age it out, or delete it. Delete publishes a replaceable tombstone (so VoxVera hides it even where relays ignore deletions) and a NIP-09 deletion request — best-effort, author-only.
• Import / export a flyer design. Save the current flyer as a portable .json file and load it back later — or hand it to someone else. The design file holds the content and relay list but nothing identity-bound (no npub, address, or signature; those are generated at publish), so a recipient can import it and publish under their own key. Importing asks for confirmation before replacing what's in the editor.
• Open from a link or ID. Load a flyer from an naddr, nevent1, note1, raw 64-char event ID, or nostr: URL. The lookup field tolerates copy/paste whitespace and newlines, so an event ID copied off a printed tear-off (where it wraps across two lines) still resolves.
• Short, scannable poster URLs. Each poster URL is a standard NIP-19 naddr carrying a single relay hint, placed in the URL #fragment (no ?addr= query). Shorter URLs make the tear-off QR code easier to scan. Older relay-list naddrs and ?addr= URLs still resolve.
• Tear-off tabs. The printable flyer has ten tear-off tabs. Each tab is labeled with the flyer's title (auto-sized to be as large as fits), a clickable "Open & reprint this flyer" link (live in the printed PDF), a QR code, and a "Reopen at VoxVera.org — Event ID:" line with the full event ID so anyone can re-find and reprint the flyer by typing it in. Localized in every language.
• Loading state on shared links. Opening a poster/event link shows a localized "Loading content…" placeholder (and a "Could not load this flyer." state on failure) instead of the default flyer; the default sample content appears only on the bare site URL.
• 14 languages with RTL support. Flyer content and UI are localized; right-to-left scripts render correctly. Letter-spacing is applied per script so cursive (Arabic/Persian) and combining (Devanagari) scripts are not broken — see the spec.
• US Letter and A4. Print size defaults to the right paper for the visitor's country (from the browser locale's region — en-US → Letter, en-GB → A4, no geolocation), with a manual override. Paper size is a local print preference and is never written into the event. See the spec.
• Fits-the-page editing. Fields that would overflow the printable sheet are rejected as you type, with an inline error under the affected field. See the field length cheat sheet for how much text fits each field per language and paper size.
• QR codes. The tear-off QR points at the poster URL (re-open and reprint); the main flyer QR points at the creator's content URL.
• Bulletin board (members-only, trust-filtered). A small screen-only link below the flyer preview (outside the printed sheet, never printed) opens a spreadsheet-style page of the most recent flyers found on the relays — title, link, posting npub, language, date, and event ID (with a copy button) — sortable by any column. Viewing the board requires connecting a Nostr identity — via a NIP-07 browser extension, by pasting a private key (nsec, decoded in-page and never stored), or by creating a new key (revealed so you can save it). The board then shows only flyers from authors in your web of trust (your NIP-02 follow graph), with a "Show all" opt-out. A brand-new key with no follows is seeded from a curated trust anchor so the board is never an unmoderated firehose. On your own flyers the board offers inline Edit / Re-broadcast / Delete; on others' it offers Report (a public, signed NIP-56 report with a category and optional reason, which also hides the flyer for you) and a local Block (a per-device hide list). Connecting is not required to author or print flyers, which stay fully anonymous. See the roadmap for the phased trust model.
• Mobile-friendly. The flyer preview shrinks to fully fit the screen width (no side-scrolling), the editor and viewer are single-column with large tap targets, and the bulletin board collapses to a card per flyer with a per-row Details toggle on narrow screens.
• Honest safety page. A localized Safety & privacy page (linked from the editor and board) explains in plain language what VoxVera protects and — just as importantly — what it does not: relays see your IP when you publish or browse, the anonymous key is stored unencrypted in your browser, a short PIN won't stop a targeted attacker, and published events are public and effectively permanent. Plus operational tips (Tor/VPN, disposable keys, signer apps). No overpromising to the people most likely to rely on it.
• Self-contained. No build step and no CDNs — Nostr and QR libraries are vendored under site/vendor/.

What Is In main

• site/index.html, site/nostr-client.js, site/nostr-client.css, site/locales.js: static editor/viewer client
• site/board.html, site/board.js: bulletin-board page listing recent flyers from the relays
• site/vendor/: vendored browser dependencies for Nostr and QR generation
• site/nostr/index.html: redirect stub so legacy /nostr/ poster URLs and QR codes still resolve
• site/CNAME: custom-domain target
• voxvera/nostr/: small Python schema/validation helpers
• docs/nostr-static-client-spec.md: design notes and development plan
• docs/flyer-field-limits.md: per-language field length cheat sheet
• docs/roadmap.md: known issues and future development directions

Local Development

Run the static site from the repo root:

python3 -m http.server 8768 --directory site

Then open:

http://127.0.0.1:8768/

No build command is required for the frontend.

Vercel

Point Vercel at this repository on main.

• Framework preset: Other
• Root directory: repo root
• Build command: leave empty
• Output directory: site

The client is served from the domain root (site/index.html). site/nostr/index.html is a redirect stub that forwards the legacy /nostr/ path to the root while preserving the query/fragment, so older poster URLs and printed QR codes still resolve.

Verification

node --check site/nostr-client.js   # client syntax
pytest -q                           # Nostr source schema

Cross-browser end-to-end tests

Playwright smoke tests run the client on Chromium, Firefox, and WebKit (Safari's engine), plus Android/iOS mobile emulations — covering rendering, the @media print path, WebCrypto key generation, the /nostr/ redirect, and the loading state.

npm install
npx playwright install     # download the browser engines
npm run test:e2e

See e2e/README.md for per-engine coverage and the one-time Linux step for WebKit (sudo npx playwright install-deps).

The Python tests only cover the Nostr source schema. The frontend is static; the Playwright suite covers engine behavior, but real Safari/iOS print and clipboard behavior is still worth a manual pass before a release.

License

MIT (c) 2026 thePR0M3TH3AN