BreadchainCoop · daopunk · Sep 10, 2026 · Sep 10, 2026
diff --git a/.agents/docs/DEVELOPMENT.md b/.agents/docs/DEVELOPMENT.md
@@ -1,4 +1,4 @@
-# CipherSlate — Development Guide
+# Sigstack — Development Guide
 
 ## Product direction
 

diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
@@ -33,24 +33,29 @@ jobs:
       - run: npm ci
       - run: npm run build
         env:
-          BASE_PATH: /sigstack-bot/cypherslate
+          BASE_PATH: /sigstack-bot/sigstack
           PUBLIC_SIGNAL_USERNAME_LINK: ${{ vars.PUBLIC_SIGNAL_USERNAME_LINK }}
           PUBLIC_STRIPE_PORTAL_URL: ${{ vars.PUBLIC_STRIPE_PORTAL_URL }}
-      - name: Prepare Pages artifact for /sigstack-bot/cypherslate
+      - name: Prepare Pages artifact for /sigstack-bot/sigstack
         shell: bash
         run: |
           set -euo pipefail
 
           # The GitHub Pages project site mounts the artifact at `/<repo>/`.
-          # Nest the SvelteKit output under `cypherslate/` so /sigstack-bot/cypherslate/
+          # Nest the SvelteKit output under `sigstack/` so /sigstack-bot/sigstack/
           # resolves. Move the whole build dir (avoids overlapping hidden-file globs).
           tmp="$(mktemp -d)"
-          mv build "$tmp/cypherslate"
+          mv build "$tmp/sigstack"
           mkdir -p build
-          mv "$tmp/cypherslate" build/cypherslate
+          mv "$tmp/sigstack" build/sigstack
           printf '%s\n' '<!doctype html>' \
-            '<meta http-equiv="refresh" content="0; url=/sigstack-bot/cypherslate/">' \
+            '<meta http-equiv="refresh" content="0; url=/sigstack-bot/sigstack/">' \
             > build/index.html
+          # Keep old /cypherslate/ bookmarks working.
+          mkdir -p build/cypherslate
+          printf '%s\n' '<!doctype html>' \
+            '<meta http-equiv="refresh" content="0; url=/sigstack-bot/sigstack/">' \
+            > build/cypherslate/index.html
           touch build/.nojekyll
       - uses: actions/upload-pages-artifact@v3
         with:

diff --git a/.github/workflows/site.yml b/.github/workflows/site.yml
@@ -33,4 +33,4 @@ jobs:
       - run: npm run test:e2e
         env:
           CI: true
-          BASE_PATH: /sigstack-bot/cypherslate
+          BASE_PATH: /sigstack-bot/sigstack
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-# CipherSlate
+# Sigstack
 
 TEE-hosted Signal bot for **voice transcription** and **group translation**, designed as an interoperable product suite.
 
@@ -23,7 +23,7 @@ Details: [docs/one-cvm-architecture.md](docs/one-cvm-architecture.md) · [docs/v
 
 | Product | Command | Effect |
 |---------|---------|--------|
-| Hub | `!help` / `!info` | CipherSlate hub menus |
+| Hub | `!help` / `!info` | Sigstack hub menus |
 | Hub | `!privacy` | Privacy, TEE, and `!verify` (one reply) |
 | Hub | `!translation-threads` | Language Threads menu |
 | Hub | `!translation-in-chat` | In-chat translation menu |

diff --git a/crates/signal-bot/src/commands/menu_locale.rs b/crates/signal-bot/src/commands/menu_locale.rs
@@ -162,7 +162,7 @@ PER MSG QUOTE REPLY:
 
 !help-transcription"#;
 
-const HELP_HUB: &str = r#"--CipherSlate--
+const HELP_HUB: &str = r#"--Sigstack--
 
 MENUS:
 !translation-threads
@@ -188,7 +188,7 @@ const HELP_THREAD: &str = r#"Language Thread
 !info
 !commands"#;
 
-const INFO_HUB: &str = r#"--CipherSlate--
+const INFO_HUB: &str = r#"--Sigstack--
 
 !translation-threads
   Language Threads — multilingual main chat + language sidecars
@@ -353,7 +353,7 @@ const PRIVACY_MENU: &str = r#"Privacy & TEE
 example:
    !verify "write something unique here"
 
-CipherSlate is one Signal number in one Phala TEE/CVM.
+Sigstack is one Signal number in one Phala TEE/CVM.
 
 Translation: Signal text is processed in this TEE and translated via NEAR AI private inference.
 

diff --git a/crates/signal-bot/src/commands/translate_all.rs b/crates/signal-bot/src/commands/translate_all.rs
@@ -781,7 +781,7 @@ mod tests {
         let msg = BotMessage {
             source: "+15550001111".into(),
             source_number: Some("+15550001111".into()),
-            source_name: Some("CipherSlate".into()),
+            source_name: Some("Sigstack".into()),
             text: "📝 Transcript:\nHola amigos".into(),
             timestamp: 0,
             message_timestamp: 0,
@@ -879,7 +879,7 @@ mod tests {
         let msg = BotMessage {
             source: "+15550001111".into(),
             source_number: Some("+15550001111".into()),
-            source_name: Some("CipherSlate".into()),
+            source_name: Some("Sigstack".into()),
             text: "Hello friends".into(),
             timestamp: 0,
             message_timestamp: 0,

diff --git a/crates/signal-bot/src/commands/verify.rs b/crates/signal-bot/src/commands/verify.rs
@@ -55,7 +55,7 @@ impl VerifyHandler {
 
     pub(crate) fn prefixed_challenge(&self, raw: Option<String>) -> String {
         let user_part = raw.unwrap_or_else(|| "no-challenge-provided".into());
-        format!("CipherSlate: {user_part}")
+        format!("Sigstack: {user_part}")
     }
 
     /// Parse the challenge nonce from the message text.
@@ -316,11 +316,11 @@ mod tests {
         let handler = create_test_handler();
         assert_eq!(
             handler.prefixed_challenge(Some("hello".into())),
-            "CipherSlate: hello"
+            "Sigstack: hello"
         );
         assert_eq!(
             handler.prefixed_challenge(None),
-            "CipherSlate: no-challenge-provided"
+            "Sigstack: no-challenge-provided"
         );
     }
 

diff --git a/crates/signal-bot/src/config.rs b/crates/signal-bot/src/config.rs
@@ -75,7 +75,7 @@ pub struct NearAiConfig {
 
 #[derive(Debug, Clone, Deserialize)]
 pub struct BotConfig {
-    /// Signal username nickname (e.g. `cipherslate`; Signal adds `.NN`).
+    /// Signal username nickname (e.g. `sigstack`; Signal adds `.NN`).
     /// Empty string disables startup username ensure.
     #[serde(default = "default_signal_username_opt")]
     pub signal_username: Option<String>,
@@ -286,7 +286,7 @@ fn default_log_level() -> String {
 }
 
 fn default_signal_username() -> String {
-    "cipherslate".into()
+    "sigstack".into()
 }
 
 fn default_signal_username_opt() -> Option<String> {

diff --git a/crates/signal-bot/src/ensure_username.rs b/crates/signal-bot/src/ensure_username.rs
@@ -60,16 +60,16 @@ mod tests {
         let mock_server = MockServer::start().await;
         Mock::given(method("POST"))
             .and(path("/v1/accounts/%2B15555555555/username"))
-            .and(body_json(serde_json::json!({ "username": "cipherslate" })))
+            .and(body_json(serde_json::json!({ "username": "sigstack" })))
             .respond_with(ResponseTemplate::new(200).set_body_json(serde_json::json!({
-                "username": "cipherslate.01",
+                "username": "sigstack.01",
                 "username_link": "https://signal.me/#eu/x"
             })))
             .mount(&mock_server)
             .await;
 
         let client = SignalClient::new(mock_server.uri()).unwrap();
-        ensure_signal_username(&client, "+15555555555", "cipherslate.99").await;
+        ensure_signal_username(&client, "+15555555555", "sigstack.99").await;
     }
 
     #[tokio::test]
@@ -90,6 +90,6 @@ mod tests {
             .await;
 
         let client = SignalClient::new(mock_server.uri()).unwrap();
-        ensure_signal_username(&client, "+15555555555", "cipherslate").await;
+        ensure_signal_username(&client, "+15555555555", "sigstack").await;
     }
 }
diff --git a/crates/signal-bot/src/main.rs b/crates/signal-bot/src/main.rs
@@ -55,11 +55,7 @@ async fn main() -> AppResult<()> {
         .as_deref()
         .filter(|p| !p.trim().is_empty())
     {
-        let nickname = config
-            .bot
-            .signal_username
-            .as_deref()
-            .unwrap_or("cipherslate");
+        let nickname = config.bot.signal_username.as_deref().unwrap_or("sigstack");
         ensure_signal_username(&signal, phone, nickname).await;
     } else {
         warn!(

diff --git a/crates/signal-client/src/client.rs b/crates/signal-client/src/client.rs
@@ -542,8 +542,8 @@ impl SignalClient {
 
     /// Set (or refresh) a Signal username for an account.
     ///
-    /// Pass a nickname (e.g. `cipherslate`); Signal assigns a discriminator
-    /// (`cipherslate.54`) and returns a shareable `username_link`.
+    /// Pass a nickname (e.g. `sigstack`); Signal assigns a discriminator
+    /// (`sigstack.54`) and returns a shareable `username_link`.
     #[instrument(skip(self))]
     pub async fn set_username(
         &self,

diff --git a/crates/signal-client/src/lib.rs b/crates/signal-client/src/lib.rs
@@ -655,20 +655,20 @@ mod tests {
 
         Mock::given(method("POST"))
             .and(path("/v1/accounts/%2B15555555555/username"))
-            .and(body_json(serde_json::json!({ "username": "cipherslate" })))
+            .and(body_json(serde_json::json!({ "username": "sigstack" })))
             .respond_with(ResponseTemplate::new(200).set_body_json(serde_json::json!({
-                "username": "cipherslate.54",
+                "username": "sigstack.54",
                 "username_link": "https://signal.me/#eu/abc"
             })))
             .mount(&mock_server)
             .await;
 
         let client = create_test_client(&mock_server).await;
         let info = client
-            .set_username("+15555555555", "cipherslate")
+            .set_username("+15555555555", "sigstack")
             .await
             .unwrap();
-        assert_eq!(info.username.as_deref(), Some("cipherslate.54"));
+        assert_eq!(info.username.as_deref(), Some("sigstack.54"));
         assert_eq!(
             info.username_link.as_deref(),
             Some("https://signal.me/#eu/abc")
@@ -687,7 +687,7 @@ mod tests {
 
         let client = create_test_client(&mock_server).await;
         let err = client
-            .set_username("+15555555555", "cipherslate")
+            .set_username("+15555555555", "sigstack")
             .await
             .unwrap_err();
         assert!(err.to_string().contains("taken"));

diff --git a/docker/.env.example b/docker/.env.example
@@ -1,5 +1,5 @@
 # Copy to docker/.env and fill in.
-# Unified CipherSlate (hub + voice + translation).
+# Unified Sigstack (hub + voice + translation).
 
 SIGNAL_PHONE=+1YYYYYYYYYY
 NEAR_AI_API_KEY=sk-your-api-key-here
@@ -14,6 +14,6 @@ LOG_LEVEL=info
 GROUP_PREFERENCES_PERSIST=true
 ENTITLEMENTS_PERSIST=true
 BOT_GITHUB_REPO=https://github.com/BreadchainCoop/sigstack-bot
-BOT_SIGNAL_USERNAME=cipherslate
+BOT_SIGNAL_USERNAME=sigstack
 RATE_LIMIT_GLOBAL_PER_MINUTE=10
 RATE_LIMIT_PER_NUMBER_PER_HOUR=3
diff --git a/docker/.phala.env.example b/docker/.phala.env.example
@@ -27,7 +27,7 @@ TRANSLATE_ALL_MAX_MESSAGES_PER_MINUTE=30
 # ENTITLEMENTS_LEGACY_COMPOSE_HASH=
 LOG_LEVEL=info
 BOT_GITHUB_REPO=https://github.com/BreadchainCoop/sigstack-bot
-BOT_SIGNAL_USERNAME=cipherslate
+BOT_SIGNAL_USERNAME=sigstack
 RATE_LIMIT_GLOBAL_PER_MINUTE=10
 RATE_LIMIT_PER_NUMBER_PER_HOUR=3
 # Optional: inject an ops SSH pubkey so `phala ssh -i …` works.

diff --git a/docker/compose.yaml b/docker/compose.yaml
@@ -43,7 +43,7 @@ services:
       - TRANSLATE_ALL__ENABLED=${TRANSLATE_ALL_ENABLED:-true}
       - TRANSLATE_ALL__MAX_MESSAGES_PER_MINUTE=${TRANSLATE_ALL_MAX_MESSAGES_PER_MINUTE:-30}
       - BOT__LOG_LEVEL=${LOG_LEVEL:-info}
-      - BOT__SIGNAL_USERNAME=${BOT_SIGNAL_USERNAME:-cipherslate}
+      - BOT__SIGNAL_USERNAME=${BOT_SIGNAL_USERNAME:-sigstack}
       - BOT__GITHUB_REPO=${BOT_GITHUB_REPO:-https://github.com/BreadchainCoop/sigstack-bot}
       - DSTACK__SOCKET_PATH=/var/run/dstack.sock
       - GROUP_PREFERENCES__PERSIST=${GROUP_PREFERENCES_PERSIST:-true}

diff --git a/docker/phala.yaml b/docker/phala.yaml
@@ -48,7 +48,7 @@ services:
       - TRANSLATE_ALL__ENABLED=${TRANSLATE_ALL_ENABLED:-true}
       - TRANSLATE_ALL__MAX_MESSAGES_PER_MINUTE=${TRANSLATE_ALL_MAX_MESSAGES_PER_MINUTE:-30}
       - BOT__LOG_LEVEL=${LOG_LEVEL:-info}
-      - BOT__SIGNAL_USERNAME=${BOT_SIGNAL_USERNAME:-cipherslate}
+      - BOT__SIGNAL_USERNAME=${BOT_SIGNAL_USERNAME:-sigstack}
       - BOT__GITHUB_REPO=${BOT_GITHUB_REPO:-https://github.com/BreadchainCoop/sigstack-bot}
       - DSTACK__SOCKET_PATH=/var/run/dstack.sock
       - GROUP_PREFERENCES__PERSIST=true

diff --git a/docs/in-chat-translation.md b/docs/in-chat-translation.md
@@ -1,6 +1,6 @@
 # In-chat (group) translation
 
-Status: **MVP implemented** on the unified CipherSlate (hub menus, in-chat, Language Threads, and voice).
+Status: **MVP implemented** on the unified Sigstack (hub menus, in-chat, Language Threads, and voice).
 
 One **bilingual** Signal group (e.g. English + Spanish). The bot detects which side of the pair a message is on and quote-replies with the other language in the **same** main thread.
 

diff --git a/docs/language-threads.md b/docs/language-threads.md
@@ -42,7 +42,7 @@ N=1 (one sidecar) uses the same relay rules as N=3 — add another language late
 | `!commands` | Sidecar only | Compact Language Thread command list |
 | `!list-langs` | Any | Full Language Threads / manual `!translate` catalog (includes Basque, Swahili, and 30 other codes) |
 | `!help-threads` | Any | How Language Threads works (use case + flow) |
-| `!help` / `!privacy` | Any | Hub menus (`!help` is always the CipherSlate hub; `!privacy` and `!verify` on this bot) |
+| `!help` / `!privacy` | Any | Hub menus (`!help` is always the Sigstack hub; `!privacy` and `!verify` on this bot) |
 
 Menus: `!help` → `!translation-threads`. English-only for now (multi-language UI deferred).
 

diff --git a/docs/one-cvm-architecture.md b/docs/one-cvm-architecture.md
@@ -8,7 +8,7 @@ See also: the architecture learning [CPU TEE Whisper does not scale](solutions/a
 
 | Bot | Phone | Duty |
 |-----|-------|------|
-| **CipherSlate** | Registered number on this CVM | Hub menus (`!help`, `!info`, `!privacy`), Language Threads, Bilingual Threads, in-chat translation, voice (`!transcription` menu, `!transcribe*`), `!verify` (one reply) |
+| **Sigstack** | Registered number on this CVM | Hub menus (`!help`, `!info`, `!privacy`), Language Threads, Bilingual Threads, in-chat translation, voice (`!transcription` menu, `!transcribe*`), `!verify` (one reply) |
 
 Voice crate [`crates/signal-bot-voice`](../crates/signal-bot-voice); pairing / `PEER_PHONE` / a second Signal number do not exist.
 

diff --git a/docs/plans/2026-08-14-001-feat-localize-bot-menus-plan.md b/docs/plans/2026-08-14-001-feat-localize-bot-menus-plan.md
@@ -54,7 +54,7 @@ A Spanish speaker in a mixed group still gets English `!help`. The leftover `Men
 - R10. In a Language Thread sidecar, if the user has no explicit locale, menus default to that sidecar's language code when it is in `ALL_LANGUAGES`.
 - R11. An explicit user locale wins over the sidecar default, including `en`.
 - R12. Localized command lists keep the stacked layout in `docs/solutions/signal-mobile-menus.md`.
-- R13. Hub `!help` from a sidecar still returns the CipherSlate hub menu (localized), not the thread compact list.
+- R13. Hub `!help` from a sidecar still returns the Sigstack hub menu (localized), not the thread compact list.
 
 **Coverage and persistence**
 

diff --git a/docs/solutions/signal-mobile-menus.md b/docs/solutions/signal-mobile-menus.md
@@ -14,15 +14,15 @@ Menus are **English-only** for now; multi-language UI is deferred.
 2. **Section header** (optional) + optional one-line blurb.
 3. **Each command** on its own line. No `cmd — desc` on one line.
 4. Prefer plain `!command` lines over `- !command` bullets.
-5. **Hub / nav lists** (e.g. main `!help` on CipherSlate): commands only — skip indented descriptions when they would just restate the command name.
+5. **Hub / nav lists** (e.g. main `!help` on Sigstack): commands only — skip indented descriptions when they would just restate the command name.
 6. **Product / how-to lists** (e.g. `!translation-in-chat`, transcription toggles): put a short description on the next line, indented with two spaces (aim ≤~40 chars).
 7. **`!help` footer** is the bare command — no “Main menu” / “Show this menu” line (`!help` is implicit).
 8. Prose blocks (privacy explanations, invite/status messages) stay paragraphs; only **command lists** use the forms above.
 
 Hub shape:
 
 ```text
-CipherSlate
+Sigstack
 
 !translation-threads
 !translation-in-chat
@@ -52,7 +52,7 @@ Optional one-line blurb.
 !help
 ```
 
-Language Thread sidecars use `!commands` for the thread menu (rename / leave / info). Hub `!help` always returns the CipherSlate menu, including when sent from a sidecar.
+Language Thread sidecars use `!commands` for the thread menu (rename / leave / info). Hub `!help` always returns the Sigstack menu, including when sent from a sidecar.
 
 Voice transcription uses `!transcription` for its product menu (not hub `!help`). Hub `!help` / `!info` / `!privacy` and `!transcription` all live on the same bot. See [one-cvm-architecture.md](../one-cvm-architecture.md).
 

diff --git a/docs/voice-transcription.md b/docs/voice-transcription.md
@@ -1,6 +1,6 @@
 # Voice transcription
 
-Status: **implemented** on the unified CipherSlate on the surviving Phala CVM.
+Status: **implemented** on the unified Sigstack on the surviving Phala CVM.
 
 Speech → text via **NEAR AI Whisper Large V3** (GPU TEE). Audio is decrypted in this CVM, stripped of Signal metadata, and uploaded as a generic file. See [one-CVM architecture](one-cvm-architecture.md) and [CPU TEE Whisper does not scale](solutions/architecture-patterns/2026-08-13-cpu-tee-whisper-does-not-scale.md).
 

diff --git a/site/README.md b/site/README.md
@@ -1,9 +1,9 @@
-# CipherSlate site
+# Sigstack site
 
-Educational / marketing site for CipherSlate.
+Educational / marketing site for Sigstack.
 
 **Stack:** SvelteKit (static) + Paraglide (en/es/fr via cookie) + Vitest + Playwright  
-**Host:** GitHub Pages at `https://breadchaincoop.github.io/sigstack-bot/cypherslate/`  
+**Host:** GitHub Pages at `https://breadchaincoop.github.io/sigstack-bot/sigstack/`  
 **Design:** Small token system inspired by [Octant](https://octant.build/) accent language and [Golem Foundation](https://golem.foundation/)-like typography (DM Sans). Not affiliated with either. Products live on one `/products` page; the nav Products dropdown pins section anchors (`#language-threads`, `#in-chat`, `#transcription`).
 
 ## Local
@@ -14,7 +14,7 @@ npm install
 npm run dev
 ```
 
-Production base path defaults to `/sigstack-bot/cypherslate`. For root-local preview:
+Production base path defaults to `/sigstack-bot/sigstack`. For root-local preview:
 
 ```bash
 BASE_PATH= npm run build && BASE_PATH= npm run preview
@@ -42,9 +42,9 @@ Optional public env (GitHub Pages-safe; never put secret keys here):
 | Variable | Effect |
 | -------- | ------ |
 | `PUBLIC_STRIPE_PORTAL_URL` | Success page “Manage billing” link; if unset, shows “coming soon” stub |
-| `PUBLIC_SIGNAL_USERNAME_LINK` | Alpha / checkout success “Message CipherSlate” button (`signal.me/#eu/…` username share link; never put the bot E.164 here) |
+| `PUBLIC_SIGNAL_USERNAME_LINK` | Alpha / checkout success “Message Sigstack” button (`signal.me/#eu/…` username share link; never put the bot E.164 here) |
 
-After the bot claims its Signal username (startup `BOT__SIGNAL_USERNAME=cipherslate`), copy the logged `username_link` into the GitHub Actions variable `PUBLIC_SIGNAL_USERNAME_LINK` and redeploy Pages.
+After the bot claims its Signal username (startup `BOT__SIGNAL_USERNAME=sigstack`), copy the logged `username_link` into the GitHub Actions variable `PUBLIC_SIGNAL_USERNAME_LINK` and redeploy Pages.
 
 ## Scripts
 
@@ -59,6 +59,6 @@ After the bot claims its Signal username (startup `BOT__SIGNAL_USERNAME=ciphersl
 
 1. Repo **Settings → Pages → Build and deployment → Source: GitHub Actions**
 2. Merge to `main` (or run **Pages** workflow manually)
-3. Site URL: https://breadchaincoop.github.io/sigstack-bot/cypherslate/
+3. Site URL: https://breadchaincoop.github.io/sigstack-bot/sigstack/
 
 Legacy `web/` (Private AI) is unrelated — do not use it as the product storefront.