V1 of laucher

src-tauri/Cargo.toml

@@ -34,4 +34,4 @@ junction = "1"
 
 [target.'cfg(windows)'.dependencies]
 # Win32_System_Threading gates JOBOBJECT_EXTENDED_LIMIT_INFORMATION (it embeds IO_COUNTERS).
-windows-sys = { version = "0.59", features = ["Win32_Foundation", "Win32_Security", "Win32_System_JobObjects", "Win32_System_Threading"] }
+windows-sys = { version = "0.59", features = ["Win32_Foundation", "Win32_Security", "Win32_Storage_FileSystem", "Win32_System_JobObjects", "Win32_System_Threading"] }

src-tauri/site.json

@@ -0,0 +1,5 @@
+{
+    "name":  "ODIAN test DHP",
+    "site_url":  "http://192.168.1.41:30097",
+    "mcp_url":  "http://192.168.1.41:30091"
+}

src-tauri/src/launcher.rs

@@ -479,7 +479,65 @@ impl Launcher {
     }
   }
 
+  /// Wait until the DHP lets this PC download a whole version, then keep the slot
+  /// alive until `hold` is cancelled. Returns false if the wait was cancelled.
+  /// A DHP that hands out no slots (or cannot be asked) never blocks an install.
+  async fn wait_for_install_slot(&self, app: &AppHandle, cancel: &CancellationToken, hold: CancellationToken) -> bool {
+    let (site_url, install_id) = {
+      let inner = self.inner.lock().await;
+      (inner.settings.site_url.clone(), inner.state.install_id.clone())
+    };
+    let mut told = false;
+    loop {
+      let Ok(token) = self.site_access_token(app).await else { return true };
+      match site::claim_install(&self.http, &site_url, &token, &install_id).await {
+        site::InstallSlot::Queued { ahead } => {
+          if !told {
+            self.log(app, "info", format!("The DHP is busy with other installs: waiting for a slot ({ahead} ahead)."));
+            told = true;
+          }
+          tokio::select! {
+            _ = cancel.cancelled() => return false,
+            _ = tokio::time::sleep(Duration::from_secs(10)) => {}
+          }
+        }
+        site::InstallSlot::Granted { lease_sec } => {
+          if told {
+            self.log(app, "info", "The DHP freed a slot: starting the download.");
+          }
+          // Renew for as long as the install runs; a PC that dies frees its slot.
+          let (handle, url, id) = (app.clone(), site_url.clone(), install_id.clone());
+          let renew_every = Duration::from_secs((lease_sec / 2).clamp(15, 300));
+          tauri::async_runtime::spawn(async move {
+            let launcher = handle.state::<Launcher>();
+            loop {
+              tokio::select! {
+                _ = hold.cancelled() => break,
+                _ = tokio::time::sleep(renew_every) => {}
+              }
+              let Ok(token) = launcher.site_access_token(&handle).await else { continue };
+              let _ = site::claim_install(&launcher.http, &url, &token, &id).await;
+            }
+            if let Ok(token) = launcher.site_access_token(&handle).await {
+              site::release_install(&launcher.http, &url, &token, &id).await;
+            }
+          });
+          return true;
+        }
+        site::InstallSlot::NotOffered => return true,
+      }
+    }
+  }
+
   async fn run_install(&self, app: &AppHandle, drive: Option<PathBuf>, install_dir: PathBuf, cancel: CancellationToken) {
+    // Downloading a whole version from the DHP takes a slot; a drive install takes none.
+    let hold = CancellationToken::new();
+    if drive.is_none() && !self.wait_for_install_slot(app, &cancel, hold.clone()).await {
+      hold.cancel();
+      self.log(app, "warn", "Install cancelled while waiting for the DHP.");
+      self.finish(app, None).await;
+      return;
+    }
     let mut renewed = false;
     let result = loop {
       let source = match &drive {
@@ -502,6 +560,8 @@ impl Launcher {
         other => break other,
       }
     };
+    // Whatever happened, let the next PC in.
+    hold.cancel();
     if let Ok(mut slot) = self.install_cancel.lock() {
       *slot = None;
     }
@@ -544,6 +604,18 @@ impl Launcher {
     let manifest = verified.manifest();
     let version = verified.version().to_string();
     install::check_runnable(manifest)?;
+    // A USB key cannot carry this: Postgres restores 16 GB into it, and unplugging the key
+    // would take the install with it. The default folder already avoids removable drives.
+    if crate::settings::is_removable_path(install_dir) {
+      self.log(
+        app,
+        "warn",
+        format!(
+          "{} is on a removable drive. ODIAN needs a disk inside this PC: change the folder in Settings,            or the database restore will stall.",
+          install_dir.display()
+        ),
+      );
+    }
 
     let database_restored = self.inner.lock().await.state.db_snapshot.is_some();
     let restores_db = manifest.db.is_some() && !database_restored;
@@ -822,7 +894,7 @@ impl Launcher {
       }
     };
 
-    match self.sync_with_dhp(app, &pg, &sql_dir, &site_url, install_id, origin, pull).await {
+    match self.sync_with_dhp(app, &pg, &sql_dir, &site_url, install_id, origin, layout.version(), pull).await {
       Ok(report) => {
         let s = &report.status;
         self.log(
@@ -856,6 +928,7 @@ impl Launcher {
     site_url: &str,
     install_id: &str,
     origin: Option<SyncOrigin>,
+    version: &str,
     pull: bool,
   ) -> Result<sync::Report, String> {
     let token = self.site_access_token(app).await?;
@@ -882,11 +955,11 @@ impl Launcher {
     }
 
     let dhp = sync::Dhp { http: &self.http, site_url, token: &token };
-    match sync::run(pg, &dhp, install_id, pull).await {
+    match sync::run(pg, &dhp, install_id, version, pull).await {
       Err(SyncError::Unauthorized) => {
         let token = self.renew(app).await?;
         let dhp = sync::Dhp { http: &self.http, site_url, token: &token };
-        sync::run(pg, &dhp, install_id, pull).await.map_err(|e| e.to_string())
+        sync::run(pg, &dhp, install_id, version, pull).await.map_err(|e| e.to_string())
       }
       other => other.map_err(|e| e.to_string()),
     }

src-tauri/src/settings.rs

@@ -41,11 +41,58 @@ fn settings_path(app: &AppHandle) -> Result<PathBuf, String> {
   Ok(dir.join("settings.json"))
 }
 
+/// Is this drive a disk built into the PC, rather than a USB key or a card?
+///
+/// A key plugged into a laptop takes D:, and ODIAN would install itself onto it: the
+/// database restore then stalls on the key's write speed until it gives up, and the
+/// install would vanish the moment someone unplugs it.
+#[cfg(windows)]
+fn is_fixed_drive(root: &str) -> bool {
+  use std::os::windows::ffi::OsStrExt;
+
+  use windows_sys::Win32::Storage::FileSystem::GetDriveTypeW;
+
+  /// GetDriveType's answer for a disk built into the PC (windows-sys does not export it).
+  const DRIVE_FIXED: u32 = 3;
+
+  let wide: Vec<u16> = std::ffi::OsStr::new(root).encode_wide().chain(std::iter::once(0)).collect();
+  unsafe { GetDriveTypeW(wide.as_ptr()) == DRIVE_FIXED }
+}
+
+#[cfg(not(windows))]
+fn is_fixed_drive(_root: &str) -> bool {
+  false
+}
+
+/// Does this path sit on a USB key or a card? Choosing one by hand is allowed, but it is
+/// worth saying out loud before an install spends half an hour failing on it.
+#[cfg(windows)]
+pub fn is_removable_path(path: &Path) -> bool {
+  use std::os::windows::ffi::OsStrExt;
+
+  use windows_sys::Win32::Storage::FileSystem::GetDriveTypeW;
+
+  /// GetDriveType's answer for a USB key or a card reader.
+  const DRIVE_REMOVABLE: u32 = 2;
+
+  let Some(std::path::Component::Prefix(prefix)) = path.components().next() else {
+    return false;
+  };
+  let root = format!("{}\\", prefix.as_os_str().to_string_lossy());
+  let wide: Vec<u16> = std::ffi::OsStr::new(&root).encode_wide().chain(std::iter::once(0)).collect();
+  unsafe { GetDriveTypeW(wide.as_ptr()) == DRIVE_REMOVABLE }
+}
+
+#[cfg(not(windows))]
+pub fn is_removable_path(_path: &Path) -> bool {
+  false
+}
+
 fn default_install_dir() -> String {
   // Operator PCs keep the ~1 TB of data off the system drive when a D: exists.
   // Not %LOCALAPPDATA%\ODIAN: on the release PC that folder holds the release
   // signing key, and deleting a test install must never be able to take it along.
-  if Path::new("D:\\").is_dir() {
+  if Path::new("D:\\").is_dir() && is_fixed_drive("D:\\") {
     "D:\\ODIAN".to_string()
   } else {
     "C:\\ODIAN".to_string()
@@ -56,8 +103,13 @@ fn read_site_file() -> SiteFile {
   let Some(dir) = std::env::current_exe().ok().and_then(|exe| exe.parent().map(Path::to_path_buf)) else {
     return SiteFile::default();
   };
-  std::fs::read(dir.join("site.json"))
+  // Beside the exe is how a launcher copied onto a USB key is handed out, and where
-    .ok()
+  // the NSIS installer puts the site it was built for. Tauri has moved bundled
+  // resources under `resources/` between versions, so look there too rather than
+  // silently starting with no site and asking the operator for an address.
+  ["site.json", "resources/site.json"]
+    .iter()
+    .find_map(|name| std::fs::read(dir.join(name)).ok())
     .and_then(|bytes| serde_json::from_slice(&bytes).ok())
     .unwrap_or_default()
 }

src-tauri/src/site.rs

@@ -121,6 +121,50 @@ pub async fn end_session(http: &reqwest::Client, mcp_url: &str, launcher_token:
     .await;
 }
 
+/// A DHP's answer to "may this PC download a whole version now?".
+pub enum InstallSlot {
+  /// Go ahead; renew before `lease_sec` runs out.
+  Granted { lease_sec: u64 },
+  /// Wait: this many PCs are downloading or waiting ahead of this one.
+  Queued { ahead: u64 },
+  /// The DHP does not hand out slots (older service): just install.
+  NotOffered,
+}
+
+/// Ask for, or renew, this PC's install slot.
+pub async fn claim_install(http: &reqwest::Client, site_url: &str, token: &str, install_id: &str) -> InstallSlot {
+  let sent = http
+    .post(format!("{site_url}/v1/install/claim"))
+    .bearer_auth(token)
+    .json(&serde_json::json!({ "install_id": install_id }))
+    .timeout(Duration::from_secs(10))
+    .send()
+    .await;
+  let Ok(response) = sent else { return InstallSlot::NotOffered };
+  if response.status() == StatusCode::NOT_FOUND {
+    return InstallSlot::NotOffered;
+  }
+  if !response.status().is_success() {
+    return InstallSlot::NotOffered;
+  }
+  let body: serde_json::Value = response.json().await.unwrap_or_default();
+  if body.get("granted").and_then(|g| g.as_bool()).unwrap_or(true) {
+    return InstallSlot::Granted { lease_sec: body.get("lease_sec").and_then(|l| l.as_u64()).unwrap_or(120) };
+  }
+  InstallSlot::Queued { ahead: body.get("ahead").and_then(|a| a.as_u64()).unwrap_or(0) }
+}
+
+/// Give the slot back. Best effort: an unreleased slot simply expires.
+pub async fn release_install(http: &reqwest::Client, site_url: &str, token: &str, install_id: &str) {
+  let _ = http
+    .post(format!("{site_url}/v1/install/release"))
+    .bearer_auth(token)
+    .json(&serde_json::json!({ "install_id": install_id }))
+    .timeout(Duration::from_secs(5))
+    .send()
+    .await;
+}
+
 pub async fn notes(http: &reqwest::Client, site_url: &str, token: &str, version: &str) -> Result<String, String> {
   let response = http
     .get(format!("{site_url}/v1/versions/{version}/notes"))

src-tauri/src/stack.rs

@@ -96,6 +96,10 @@ impl Layout {
   pub fn new(root: &Path, version: &str) -> Layout {
     Layout { root: root.to_path_buf(), version: version.to_string() }
   }
+  /// The installed version this layout is for; the DHP lists it against this install.
+  pub fn version(&self) -> &str {
+    &self.version
+  }
   pub fn version_dir(&self) -> PathBuf {
     self.root.join("versions").join(&self.version)
   }
@@ -143,7 +147,7 @@ pub struct StackConfig {
   pub pg_password: String,
   pub install_id: String,
   /// (style, dataset) of every tile set the installed version carries.
-  pub tile_sets: Vec<(String, String)>,
+  pub tile_sets: Vec<TileSet>,
   /// The DHP's Engine API (from its health answer). With one, the local API serves
   /// the DHP's data while it is reachable; without, this PC always serves its own.
   pub upstream_url: Option<String>,
@@ -428,20 +432,58 @@ fn pg_ini(config: &StackConfig) -> String {
   )
 }
 
+/// What a tile of this kind is served as. Anything else is bytes.
+fn media_type(ext: &str) -> &'static str {
+  match ext {
+    ".jpg" | ".jpeg" => "image/jpeg",
+    ".png" => "image/png",
+    ".webp" => "image/webp",
+    ".tif" | ".tiff" => "image/tiff",
+    _ => "application/octet-stream",
+  }
+}
+
 fn datasets(config: &StackConfig) -> serde_json::Value {
   let tiles = config.layout.data_dir().join("tiles");
   let mut doc = serde_json::Map::new();
-  for (_, dataset) in &config.tile_sets {
+  for set in &config.tile_sets {
+    let entry = doc.entry(set.dataset.clone()).or_insert_with(|| {
       let mut entry = serde_json::json!({ "cache_dir": text(tiles.clone()) });
-    let pmtiles = config.layout.data_dir().join("src").join(format!("{dataset}.pmtiles"));
+      let pmtiles = config.layout.data_dir().join("src").join(format!("{}.pmtiles", set.dataset));
       if pmtiles.is_file() {
         entry["pmtiles"] = serde_json::Value::String(text(pmtiles));
       }
-    doc.insert(dataset.clone(), entry);
+      entry
+    });
+    // Imagery is .jpg, a drawn basemap .png: the tile server assumes .png unless told,
+    // and looking for the wrong name is a 404 for every tile of that style.
+    if !set.ext.is_empty() {
+      let styles = entry
+        .as_object_mut()
+        .expect("a dataset entry is an object")
+        .entry("styles")
+        .or_insert_with(|| serde_json::Value::Object(serde_json::Map::new()));
+      styles[&set.style] = serde_json::json!({ "tile_ext": set.ext, "media_type": media_type(&set.ext) });
+    }
   }
   serde_json::Value::Object(doc)
 }
 
+/// Where the Engine reads elevation from.
+///
+/// The height map ships as a tile set like any basemap (style `terrarium`), so it lands in
+/// `data	iles	errarium\<dataset>`. Without one installed this stays the empty `data\dem`
+/// folder, and the Engine simply has no elevation.
+fn dem_dir(config: &StackConfig) -> PathBuf {
+  let data = config.layout.data_dir();
+  installed_tile_sets(&config.layout)
+    .unwrap_or_default()
+    .into_iter()
+    .find(|set| set.style == "terrarium")
+    .map(|set| data.join("tiles").join(&set.style).join(&set.dataset))
+    .unwrap_or_else(|| data.join("dem").join("terrarium"))
+}
+
 fn api_env(config: &StackConfig) -> Vec<(&'static str, String)> {
   let api = config.layout.state_dir().join("api");
   let logs = api.join("logs");
@@ -452,7 +494,7 @@ fn api_env(config: &StackConfig) -> Vec<(&'static str, String)> {
     ("ODIAN_MINT_SECRET", config.mint_secret.clone()),
     ("ODIAN_DISCOVERY", "0".to_string()),
     ("ODIAN_DEM_OFFLINE", "1".to_string()),
-    ("ODIAN_DEM_DIR", text(config.layout.data_dir().join("dem").join("terrarium"))),
+    ("ODIAN_DEM_DIR", text(dem_dir(config))),
     ("ODIAN_RAIL_SYNC", "0".to_string()),
     ("ODIAN_WEATHER_INI", text(api.join("weather.ini"))),
     ("ODIAN_OPENAIP_INI", text(api.join("openaip.ini"))),
@@ -507,26 +549,44 @@ fn client_env(config: &StackConfig) -> Vec<(&'static str, String)> {
   let basemap = config
     .tile_sets
     .iter()
-    .find(|(style, _)| style == "dark")
+    .find(|set| set.style == "dark")
-    .or_else(|| config.tile_sets.iter().find(|(style, _)| style != "heightmap"));
+    .or_else(|| config.tile_sets.iter().find(|set| set.style != "heightmap"));
-  if let Some((style, dataset)) = basemap {
+  if let Some(set) = basemap {
-    env.push(("ODIAN_TILE_STYLE", style.clone()));
+    env.push(("ODIAN_TILE_STYLE", set.style.clone()));
-    env.push(("ODIAN_TILE_DATASET", dataset.clone()));
+    env.push(("ODIAN_TILE_DATASET", set.dataset.clone()));
   }
-  match config.tile_sets.iter().find(|(style, _)| style == "heightmap") {
+  // Every style this install carries, so the client's basemap picker offers exactly
-    Some((style, dataset)) => {
+  // what this PC can draw offline. Without it the client falls back to a fixed list
+  // of three, which is what hid the satellite and orthophoto maps 0.54.0 ships.
+  let styles: Vec<&str> = config.tile_sets.iter().map(|set| set.style.as_str()).collect();
+  if !styles.is_empty() {
+    env.push(("ODIAN_TILE_STYLES", styles.join(",")));
+  }
+  match config.tile_sets.iter().find(|set| set.style == "heightmap") {
+    Some(set) => {
       env.push(("ODIAN_HEIGHT_SERVER_URL", tiles_url));
       env.push(("ODIAN_HEIGHT_FORMAT", "lerc".to_string()));
-      env.push(("ODIAN_HEIGHT_STYLE", style.clone()));
+      env.push(("ODIAN_HEIGHT_STYLE", set.style.clone()));
-      env.push(("ODIAN_HEIGHT_DATASET", dataset.clone()));
+      env.push(("ODIAN_HEIGHT_DATASET", set.dataset.clone()));
     }
     None => env.push(("ODIAN_HEIGHT_ENABLED", "0".to_string())),
   }
   env
 }
 
+/// One tile set carried by the installed version.
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct TileSet {
+  pub style: String,
+  pub dataset: String,
+  /// What its tiles are named: ".jpg" for imagery, ".png" for a drawn basemap, ".lerc"
+  /// for elevation. Empty when the pack predates this, and the tile server's own default
+  /// (.png) then applies, which is what those older packs carried anyway.
+  pub ext: String,
+}
+
 /// The tile sets the installed version's manifest names.
-pub fn installed_tile_sets(layout: &Layout) -> Result<Vec<(String, String)>, String> {
+pub fn installed_tile_sets(layout: &Layout) -> Result<Vec<TileSet>, String> {
   let path = layout.version_dir().join("manifest.json");
   let bytes = std::fs::read(&path).map_err(|e| format!("{} is missing ({e}); reinstall this version", path.display()))?;
   let manifest: serde_json::Value =
@@ -536,7 +596,13 @@ pub fn installed_tile_sets(layout: &Layout) -> Result<Vec<(String, String)>, Str
     .map(|sets| {
       sets
         .iter()
-        .filter_map(|set| Some((set.get("style")?.as_str()?.to_string(), set.get("dataset")?.as_str()?.to_string())))
+        .filter_map(|set| {
+          Some(TileSet {
+            style: set.get("style")?.as_str()?.to_string(),
+            dataset: set.get("dataset")?.as_str()?.to_string(),
+            ext: set.get("tile_ext").and_then(|e| e.as_str()).unwrap_or_default().to_string(),
+          })
+        })
         .collect()
     })
     .unwrap_or_default())
@@ -561,7 +627,10 @@ mod tests {
       mint_secret: "secret".to_string(),
       pg_password: "pw".to_string(),
       install_id: "install".to_string(),
-      tile_sets: tile_sets.iter().map(|(s, d)| (s.to_string(), d.to_string())).collect(),
+      tile_sets: tile_sets
+        .iter()
+        .map(|(s, d)| TileSet { style: s.to_string(), dataset: d.to_string(), ext: String::new() })
+        .collect(),
       upstream_url: None,
     }
   }
@@ -605,6 +674,22 @@ mod tests {
     assert!(value(&env, "ODIAN_MCP_API_URL").is_none(), "an offline client must not know the MCP");
   }
 
+  #[test]
+  fn the_client_is_told_every_style_this_install_carries() {
+    // The picker offers what the PC holds. Naming only the default basemap is what
+    // left 0.54.0's satellite and orthophoto maps installed but unreachable.
+    let env = client_env(&config(&[
+      ("dark", "protomaps_20260423"),
+      ("satellite_hd", "protomaps_20260423"),
+      ("orthophotos", "protomaps_20260423"),
+      ("heightmap", "planet_heightmap"),
+    ]));
+    assert_eq!(value(&env, "ODIAN_TILE_STYLES"), Some("dark,satellite_hd,orthophotos,heightmap"));
+
+    let none = client_env(&config(&[]));
+    assert!(value(&none, "ODIAN_TILE_STYLES").is_none(), "no tile sets, nothing to name");
+  }
+
   #[test]
   fn heights_are_switched_off_when_the_version_has_none() {
     let env = client_env(&config(&[("dark", "protomaps_20260423")]));
@@ -634,6 +719,30 @@ mod tests {
     assert!(object["planet_heightmap"].get("pmtiles").is_none(), "no pmtiles on disk, so none is named");
   }
 
+  #[test]
+  fn datasets_name_each_style_extension() {
+    let mut cfg = config(&[]);
+    cfg.tile_sets = vec![
+      TileSet { style: "dark".to_string(), dataset: "protomaps_20260423".to_string(), ext: ".png".to_string() },
+      TileSet { style: "satellite_hd".to_string(), dataset: "protomaps_20260423".to_string(), ext: ".jpg".to_string() },
+      TileSet { style: "heightmap".to_string(), dataset: "planet_heightmap".to_string(), ext: ".lerc".to_string() },
+    ];
+    let doc = datasets(&cfg);
+    // Two styles share one dataset: both must be named under it, not overwrite each other.
+    let shared = &doc["protomaps_20260423"]["styles"];
+    assert_eq!(shared["dark"]["tile_ext"], ".png");
+    assert_eq!(shared["satellite_hd"]["tile_ext"], ".jpg");
+    assert_eq!(shared["satellite_hd"]["media_type"], "image/jpeg");
+    assert_eq!(doc["planet_heightmap"]["styles"]["heightmap"]["tile_ext"], ".lerc");
+  }
+
+  #[test]
+  fn a_pack_without_extensions_names_no_styles() {
+    // Older packs said nothing, and the tile server's own default (.png) was right for them.
+    let doc = datasets(&config(&[("dark", "protomaps_20260423")]));
+    assert!(doc["protomaps_20260423"].get("styles").is_none());
+  }
+
   #[test]
   fn tile_sets_come_from_the_installed_manifest() {
     let root = std::env::temp_dir().join(format!("odian-launcher-test-{}", uuid::Uuid::new_v4().simple()));
@@ -646,7 +755,13 @@ mod tests {
     .unwrap();
     let sets = installed_tile_sets(&layout).unwrap();
     std::fs::remove_dir_all(&root).unwrap();
-    assert_eq!(sets, vec![("dark".to_string(), "protomaps_20260423".to_string()), ("heightmap".to_string(), "planet_heightmap".to_string())]);
+    assert_eq!(
+      sets,
+      vec![
+        TileSet { style: "dark".to_string(), dataset: "protomaps_20260423".to_string(), ext: String::new() },
+        TileSet { style: "heightmap".to_string(), dataset: "planet_heightmap".to_string(), ext: String::new() },
+      ]
+    );
   }
 }
 

src-tauri/src/sync.rs

@@ -220,16 +220,25 @@ pub async fn hello(dhp: &Dhp<'_>) -> Result<(String, String), SyncError> {
 }
 
 /// Push this PC's edits; then, when `pull`, apply everything new on the DHP.
-/// Postgres must be running and the local Engine API stopped.
+/// Postgres must be running and the local Engine API stopped. `version` is reported
-pub async fn run(pg: &Pg, dhp: &Dhp<'_>, install_id: &str, pull: bool) -> Result<Report, SyncError> {
+/// so the DHP's install list can say which version each PC is on.
+pub async fn run(pg: &Pg, dhp: &Dhp<'_>, install_id: &str, version: &str, pull: bool) -> Result<Report, SyncError> {
   let mut report = Report::default();
+  // Say which DHP database these edits were made against. A PC carried over from another
+  // one (a test copy, say) would otherwise apply its edits, deletions included, here.
+  let joined = blocking(pg, joined_db_id).await?.unwrap_or_default();
   loop {
     let items = blocking(pg, |pg| query(pg, &format!("SELECT sync.outbox({PUSH_BATCH})"))).await?;
     let count = items.as_array().map_or(0, Vec::len);
     if count == 0 {
       break;
     }
-    let answer = call(dhp, "/v1/sync/push", Some(&json!({ "install_id": install_id, "changes": items }))).await?;
+    let answer = call(
+      dhp,
+      "/v1/sync/push",
+      Some(&json!({ "install_id": install_id, "version": version, "db_id": joined, "changes": items })),
+    )
+    .await?;
     let recorded =
       blocking(pg, move |pg| query(pg, &format!("SELECT sync.pushed({}, {})", jsonb(&items), jsonb(&answer)))).await?;
     let accepted = recorded.get("accepted").and_then(Value::as_u64).unwrap_or(0);
@@ -247,7 +256,12 @@ pub async fn run(pg: &Pg, dhp: &Dhp<'_>, install_id: &str, pull: bool) -> Result
     let mut cursor = json!({ "since": since });
     let mut changes: Vec<Value> = Vec::new();
     let db_id = loop {
-      let page = call(dhp, "/v1/sync/pull", Some(&json!({ "cursor": cursor, "limit": PULL_PAGE }))).await?;
+      let page = call(
+        dhp,
+        "/v1/sync/pull",
+        Some(&json!({ "cursor": cursor, "limit": PULL_PAGE, "install_id": install_id, "version": version })),
+      )
+      .await?;
       if let Some(list) = page.get("changes").and_then(Value::as_array) {
         changes.extend(list.iter().cloned());
       }

src-tauri/tauri.conf.json

@@ -31,6 +31,9 @@
   "bundle": {
     "active": true,
     "targets": ["nsis"],
+    "resources": [
+      "site.json"
+    ],
     "icon": [
       "icons/32x32.png",
       "icons/128x128.png",