v1.2.9: mermaid diagrams, math editor, external viewer, manual notebook sort, heading hotkeys

README.md

@@ -1,7 +1,7 @@
 # HelixNotes
 
 [![License: AGPL-3.0](https://img.shields.io/badge/License-AGPL--3.0-blue.svg)](https://codeberg.org/ArkHost/HelixNotes/src/branch/main/LICENSE)
-[![Latest Release](https://img.shields.io/badge/release-v1.2.5-green)](https://codeberg.org/ArkHost/HelixNotes/releases)
+[![Latest Release](https://img.shields.io/badge/release-v1.2.8-green)](https://codeberg.org/ArkHost/HelixNotes/releases)
 [![Website](https://img.shields.io/badge/web-helixnotes.com-purple)](https://helixnotes.com)
 [![Platform](https://img.shields.io/badge/platform-Linux%20%7C%20Windows%20%7C%20macOS%20%7C%20Android-lightgrey)]()
 
@@ -10,7 +10,7 @@ A local markdown note-taking app built with Tauri, SvelteKit, and Rust.
 Your notes are stored as standard Markdown files on your local filesystem.
 No cloud, no lock-in.
 
-## Download (v1.2.5)
+## Download (v1.2.8)
 
 ### Linux
 
@@ -28,23 +28,23 @@ curl -fsSL https://repo.arkhost.com/gpg.key | sudo gpg --dearmor -o /usr/share/k
 
 #### AppImage (Arch, Fedora 43+, openSUSE Tumbleweed)
 
-[Download AppImage](https://download.helixnotes.com/releases/v1.2.5/HelixNotes_1.2.5_amd64.AppImage)
+[Download AppImage](https://download.helixnotes.com/releases/v1.2.8/HelixNotes_1.2.8_amd64.AppImage)
 
 #### .deb (manual)
 
-[Download .deb](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.2.5/HelixNotes_1.2.5_amd64.deb) (Ubuntu 22.04+)
+[Download .deb](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.2.8/HelixNotes_1.2.8_amd64.deb) (Ubuntu 22.04+)
 
 ### Windows
 
-[Download Installer](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.2.5/HelixNotes_1.2.5_x64-setup.exe) (Windows 10/11)
+[Download Installer](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.2.8/HelixNotes_1.2.8_x64-setup.exe) (Windows 10/11)
 
 ### macOS
 
-[Download .dmg](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.2.5/HelixNotes_1.2.5_x64.dmg) (Intel, runs on Apple Silicon via Rosetta)
+[Download .dmg](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.2.8/HelixNotes_1.2.8_x64.dmg) (Intel, runs on Apple Silicon via Rosetta)
 
 ### Android
 
-[Download APK](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.2.5/HelixNotes_1.2.5_android.apk)
+[Download APK](https://codeberg.org/ArkHost/HelixNotes/releases/download/v1.2.8/HelixNotes_1.2.8_android.apk)
 
 ---
 

package.json

@@ -2,7 +2,7 @@
   "name": "helixnotes",
   "private": true,
   "license": "AGPL-3.0-or-later",
-  "version": "1.2.6",
+  "version": "1.2.9",
   "type": "module",
   "scripts": {
     "dev": "vite dev",
@@ -65,6 +65,7 @@
     "markdown-it-mark": "^4.0.0",
     "markdown-it-sub": "^2.0.0",
     "markdown-it-sup": "^2.0.0",
-    "markdown-it-task-lists": "^2.1.1"
+    "markdown-it-task-lists": "^2.1.1",
+    "mermaid": "^11.14.0"
   }
 }

src-tauri/Cargo.lock

@@ -1850,7 +1850,7 @@ checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "helixnotes"
-version = "1.2.5"
+version = "1.2.9"
 dependencies = [
  "arboard",
  "chrono",

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "helixnotes"
-version = "1.2.5"
+version = "1.2.9"
 description = "Local markdown note-taking app"
 authors = ["HelixNotes"]
 license = "AGPL-3.0-or-later"

src-tauri/src/ai.rs

@@ -190,7 +190,6 @@ async fn stream_anthropic(
         }
     }
 
-    // Stream ended — send done
     let _ = app.emit(
         "ai-stream",
         AiStreamEvent {

src-tauri/src/backup.rs

@@ -207,7 +207,7 @@ pub fn restore_backup(vault_path: &str, backup_path: &str) -> Result<(), String>
             .to_string_lossy()
             .to_string();
 
-        // Keep hidden dirs (.helixnotes) — we'll handle attachments separately
+        // Keep hidden dirs (.helixnotes) - we'll handle attachments separately
         if name.starts_with('.') {
             continue;
         }

src-tauri/src/commands.rs

@@ -11,7 +11,7 @@ use tauri::{AppHandle, Manager, State};
 pub fn open_vault(app: AppHandle, state: State<'_, AppState>, path: String) -> Result<(), String> {
     operations::ensure_vault_structure(&path)?;
 
-    // Initialize search index — rebuild in background on Android (FUSE is slow)
+    // Initialize search index - rebuild in background on Android (FUSE is slow)
     let search = std::sync::Arc::new(SearchIndex::new(&path)?);
     #[cfg(target_os = "android")]
     {
@@ -257,6 +257,14 @@ pub fn save_note(
     drop(config);
 
     operations::save_note(&path, &meta, &body)?;
+
+    // Re-index note so search picks up changes immediately
+    if let Ok(search_guard) = state.search_index.lock() {
+        if let Some(ref search) = *search_guard {
+            let _ = search.index_note(&path);
+        }
+    }
+
     Ok(())
 }
 
@@ -422,9 +430,14 @@ pub fn get_graph_data(state: State<'_, AppState>) -> Result<crate::types::GraphD
     let vault_path = config.active_vault.as_ref().ok_or("No active vault")?;
     let vault = std::path::Path::new(vault_path);
 
-    // Pass 1: collect all notes with titles (fast title extraction, no YAML parsing)
+    // Pass 1: collect ALL notes as nodes (no title deduplication - every note must appear)
     let mut graph_nodes = Vec::new();
-    let mut title_to_idx: HashMap<String, usize> = HashMap::new();
+    // title → list of node indices (one title can map to multiple notes in different folders)
+    let mut title_to_idxs: HashMap<String, Vec<usize>> = HashMap::new();
+    // vault-relative path without extension → idx (for [[subfolder/note]] style links)
+    let mut relpath_to_idx: HashMap<String, usize> = HashMap::new();
+    // absolute path → idx (for fast active-note lookup)
+    let mut path_to_idx: HashMap<String, usize> = HashMap::new();
     let mut seen_paths: HashSet<String> = HashSet::new();
     let mut contents: Vec<String> = Vec::new();
 
@@ -454,12 +467,18 @@ pub fn get_graph_data(state: State<'_, AppState>) -> Result<crate::types::GraphD
             path.file_stem().unwrap_or_default().to_string_lossy().to_string()
         });
 
-        // Deduplicate by title — skip if we already have a node with this title
-        let title_lower = title.to_lowercase();
-        if title_to_idx.contains_key(&title_lower) { continue; }
-
         let idx = graph_nodes.len();
-        title_to_idx.insert(title_lower, idx);
+        let title_lower = title.to_lowercase();
+        title_to_idxs.entry(title_lower).or_default().push(idx);
+        path_to_idx.insert(path_str.clone(), idx);
+
+        // Also index by vault-relative path without extension (e.g. "subfolder/note name")
+        if let Ok(rel) = path.strip_prefix(vault) {
+            let rel_no_ext = rel.with_extension("");
+            let rel_lower = rel_no_ext.to_string_lossy().to_lowercase();
+            relpath_to_idx.entry(rel_lower).or_insert(idx);
+        }
+
         graph_nodes.push(crate::types::GraphNode {
             title,
             path: path_str,
@@ -468,8 +487,22 @@ pub fn get_graph_data(state: State<'_, AppState>) -> Result<crate::types::GraphD
     }
 
     // Pass 2: extract edges from wiki-links (inline scan, no regex)
-    let mut edges = Vec::new();
-    let mut edge_set: HashSet<(usize, usize)> = HashSet::new();
+    // edge_map: (src, tgt) → index in edges vec, used to detect reverse links
+    let mut edges: Vec<crate::types::GraphEdge> = Vec::new();
+    let mut edge_map: HashMap<(usize, usize), usize> = HashMap::new();
+
+    let add_edge = |edges: &mut Vec<crate::types::GraphEdge>, edge_map: &mut HashMap<(usize, usize), usize>, src: usize, tgt: usize| {
+        if src == tgt { return; }
+        if edge_map.contains_key(&(src, tgt)) { return; } // exact duplicate
+        if let Some(&rev_idx) = edge_map.get(&(tgt, src)) {
+            // Reverse direction already exists - mark it as bidirectional
+            edges[rev_idx].bidirectional = true;
+        } else {
+            let idx = edges.len();
+            edge_map.insert((src, tgt), idx);
+            edges.push(crate::types::GraphEdge { source: src, target: tgt, bidirectional: false });
+        }
+    };
 
     for (source_idx, body) in contents.iter().enumerate() {
         let bytes = body.as_bytes();
@@ -490,11 +523,21 @@ pub fn get_graph_data(state: State<'_, AppState>) -> Result<crate::types::GraphD
                     let link = link.split('^').next().unwrap_or(link);
                     let link = link.trim().to_lowercase();
 
-                    if let Some(&target_idx) = title_to_idx.get(&link) {
-                        if target_idx != source_idx {
-                            let key = if source_idx < target_idx { (source_idx, target_idx) } else { (target_idx, source_idx) };
-                            if edge_set.insert(key) {
-                                edges.push(crate::types::GraphEdge { source: source_idx, target: target_idx });
+                    // 1. Try vault-relative path match (e.g. "arkhost/note name")
+                    if let Some(&target_idx) = relpath_to_idx.get(&link) {
+                        add_edge(&mut edges, &mut edge_map, source_idx, target_idx);
+                    } else if let Some(targets) = title_to_idxs.get(&link) {
+                        // 2. Title match - connect to all notes with this title
+                        for &target_idx in targets {
+                            add_edge(&mut edges, &mut edge_map, source_idx, target_idx);
+                        }
+                    } else if link.contains('/') {
+                        // 3. Path-based ref: try last segment as title fallback
+                        if let Some(seg) = link.rsplit('/').next() {
+                            if let Some(targets) = title_to_idxs.get(seg) {
+                                for &target_idx in targets {
+                                    add_edge(&mut edges, &mut edge_map, source_idx, target_idx);
+                                }
                             }
                         }
                     }
@@ -685,6 +728,32 @@ pub fn copy_image_to_clipboard(_path: String) -> Result<(), String> {
     Err("Clipboard image copy not supported on Android".to_string())
 }
 
+/// Copy PNG bytes directly to the system clipboard.
+#[cfg(not(target_os = "android"))]
+#[tauri::command]
+pub fn copy_png_to_clipboard(data: Vec<u8>) -> Result<(), String> {
+    let img = image::load_from_memory(&data)
+        .map_err(|e| format!("Failed to decode image: {}", e))?;
+    let rgba = img.to_rgba8();
+    let (w, h) = rgba.dimensions();
+    let img_data = arboard::ImageData {
+        width: w as usize,
+        height: h as usize,
+        bytes: std::borrow::Cow::Owned(rgba.into_raw()),
+    };
+    let mut clipboard = arboard::Clipboard::new()
+        .map_err(|e| format!("Clipboard init failed: {}", e))?;
+    clipboard.set_image(img_data)
+        .map_err(|e| format!("Failed to set clipboard image: {}", e))?;
+    Ok(())
+}
+
+#[cfg(target_os = "android")]
+#[tauri::command]
+pub fn copy_png_to_clipboard(_data: Vec<u8>) -> Result<(), String> {
+    Err("Clipboard image copy not supported on Android".to_string())
+}
+
 // ── Attachments ──
 
 #[tauri::command]
@@ -1362,40 +1431,67 @@ fn resolve_wiki_ref(
     reference.to_string()
 }
 
-// ── Open file with system default handler ──
+// ── Open file/URL with system default handler ──
 
-#[tauri::command]
-pub fn open_file(path: String) -> Result<(), String> {
+fn xdg_open(arg: &str) -> Result<(), String> {
     #[cfg(target_os = "linux")]
     {
-        std::process::Command::new("xdg-open")
-            .arg(&path)
-            .spawn()
-            .map_err(|e| format!("Failed to open {}: {}", path, e))?;
+        let mut cmd = std::process::Command::new("xdg-open");
+        cmd.arg(arg);
+        // Clear AppImage environment so child processes find host binaries
+        // (e.g. gio-launch-desktop on GNOME)
+        if std::env::var("APPIMAGE").is_ok() {
+            cmd.env_remove("LD_LIBRARY_PATH")
+                .env_remove("LD_PRELOAD")
+                .env_remove("GIO_LAUNCHED_DESKTOP_FILE")
+                .env_remove("GIO_LAUNCHED_DESKTOP_FILE_PID");
+            if let Ok(original_path) = std::env::var("PATH_ORIG") {
+                cmd.env("PATH", original_path);
+            }
+        }
+        cmd.spawn()
+            .map_err(|e| format!("Failed to open {}: {}", arg, e))?;
     }
     #[cfg(target_os = "macos")]
     {
         std::process::Command::new("open")
-            .arg(&path)
+            .arg(arg)
             .spawn()
-            .map_err(|e| format!("Failed to open {}: {}", path, e))?;
+            .map_err(|e| format!("Failed to open {}: {}", arg, e))?;
     }
     #[cfg(target_os = "windows")]
     {
         std::process::Command::new("cmd")
-            .args(["/C", "start", "", &path])
+            .args(["/C", "start", "", arg])
             .spawn()
-            .map_err(|e| format!("Failed to open {}: {}", path, e))?;
+            .map_err(|e| format!("Failed to open {}: {}", arg, e))?;
     }
     Ok(())
 }
 
+#[tauri::command]
+pub fn open_file(path: String) -> Result<(), String> {
+    xdg_open(&path)
+}
+
+#[tauri::command]
+pub fn open_url(url: String) -> Result<(), String> {
+    xdg_open(&url)
+}
+
 #[tauri::command]
 pub fn copy_file_to(source: String, destination: String) -> Result<(), String> {
     std::fs::copy(&source, &destination).map_err(|e| format!("Failed to copy file: {}", e))?;
     Ok(())
 }
 
+#[tauri::command]
+pub fn write_bytes_to(destination: String, data: Vec<u8>) -> Result<(), String> {
+    std::fs::write(&destination, &data).map_err(|e| format!("Failed to write file: {}", e))?;
+    Ok(())
+}
+
+
 // ── Backup ──
 
 #[tauri::command]
@@ -1654,10 +1750,10 @@ pub fn ai_ask(
 
     let mut system_prompt = "You are a helpful writing assistant inside a note-taking app called HelixNotes. \
         You help users improve, rewrite, summarize, and transform their text. \
-        Return ONLY the resulting text — no explanations, no markdown code fences, no preamble. \
+        Return ONLY the resulting text - no explanations, no markdown code fences, no preamble. \
         Preserve the original language of the text unless specifically asked to translate. \
         Preserve any markdown formatting (bold, italic, links, images, tables, etc.) unless the user asks to change it. \
-        If the text contains placeholders like __MEDIA_0__, __MEDIA_1__, etc., keep them exactly as they are in their original positions — they represent images and embedded files.".to_string();
+        If the text contains placeholders like __MEDIA_0__, __MEDIA_1__, etc., keep them exactly as they are in their original positions - they represent images and embedded files.".to_string();
 
     if let Some(ref style) = writing_style {
         system_prompt.push_str(&format!(

src-tauri/src/history.rs

@@ -157,7 +157,7 @@ fn prune_versions(dir: &Path, max: u32) -> Result<(), String> {
         .filter(|p| p.extension().map_or(false, |ext| ext == "md"))
         .collect();
 
-    // Sort by name (timestamps sort lexicographically) — newest last
+    // Sort by name (timestamps sort lexicographically) - newest last
     files.sort();
 
     if files.len() as u32 > max {

src-tauri/src/lib.rs

@@ -137,7 +137,10 @@ pub fn run() {
             commands::get_vault_stats,
             commands::import_obsidian,
             commands::open_file,
+            commands::open_url,
             commands::copy_file_to,
+            commands::write_bytes_to,
+            commands::copy_png_to_clipboard,
             commands::create_backup,
             commands::list_backups,
             commands::restore_backup,

src-tauri/src/search/mod.rs

@@ -9,9 +9,9 @@ use tantivy::collector::TopDocs;
 use tantivy::directory::MmapDirectory;
 #[cfg(target_os = "android")]
 use tantivy::directory::RamDirectory;
-use tantivy::query::QueryParser;
+use tantivy::query::{BooleanQuery, FuzzyTermQuery, Occur, PhrasePrefixQuery, Query};
 use tantivy::schema::*;
-use tantivy::{Index, IndexWriter, TantivyDocument};
+use tantivy::{Index, IndexWriter, TantivyDocument, Term};
 use walkdir::WalkDir;
 
 pub struct SearchIndex {
@@ -152,14 +152,37 @@ impl SearchIndex {
         let reader = self.index.reader().map_err(|e| e.to_string())?;
         let searcher = reader.searcher();
 
-        let query_parser = QueryParser::for_index(
-            &self.index,
-            vec![self.title_field, self.body_field, self.tags_field],
-        );
+        let fields = vec![self.title_field, self.body_field, self.tags_field];
+        let terms: Vec<String> = query_str
+            .split_whitespace()
+            .map(|t| t.to_lowercase())
+            .collect();
 
-        let query = query_parser
-            .parse_query(query_str)
-            .map_err(|e| e.to_string())?;
+        // For each search term, create prefix + fuzzy queries across all fields (OR),
+        // then AND all terms together
+        let term_queries: Vec<(Occur, Box<dyn Query>)> = terms
+            .iter()
+            .map(|term| {
+                let field_queries: Vec<(Occur, Box<dyn Query>)> = fields
+                    .iter()
+                    .flat_map(|&field| {
+                        let prefix: Box<dyn Query> = Box::new(PhrasePrefixQuery::new(
+                            vec![Term::from_field_text(field, term)],
+                        ));
+                        let fuzzy: Box<dyn Query> = Box::new(FuzzyTermQuery::new(
+                            Term::from_field_text(field, term),
+                            1,
+                            true,
+                        ));
+                        vec![(Occur::Should, prefix), (Occur::Should, fuzzy)]
+                    })
+                    .collect();
+                let combined: Box<dyn Query> = Box::new(BooleanQuery::new(field_queries));
+                (Occur::Must, combined)
+            })
+            .collect();
+
+        let query = BooleanQuery::new(term_queries);
 
         let top_docs = searcher
             .search(&query, &TopDocs::with_limit(limit))

src-tauri/src/types.rs

@@ -199,6 +199,10 @@ pub struct VaultState {
     pub sidebar_collapsed: bool,
     #[serde(default)]
     pub collapsed_notebooks: Vec<String>,
+    #[serde(default)]
+    pub notebook_sort_mode: String,
+    #[serde(default)]
+    pub notebook_order: std::collections::HashMap<String, i32>,
 }
 
 impl Default for VaultState {
@@ -209,6 +213,8 @@ impl Default for VaultState {
             notelist_width: 280.0,
             sidebar_collapsed: false,
             collapsed_notebooks: Vec::new(),
+            notebook_sort_mode: String::new(),
+            notebook_order: std::collections::HashMap::new(),
         }
     }
 }
@@ -285,4 +291,5 @@ pub struct GraphNode {
 pub struct GraphEdge {
     pub source: usize,
     pub target: usize,
+    pub bidirectional: bool,
 }

src-tauri/src/vault/frontmatter.rs

@@ -61,7 +61,7 @@ pub fn parse_note(raw: &str, filename: &str) -> (NoteMeta, String) {
         .and_then(|s| parse_date_flexible(&s))
         .unwrap_or_else(Utc::now);
 
-    // Don't generate UUID on read — empty string signals "no ID yet"
+    // Don't generate UUID on read - empty string signals "no ID yet"
     let id = fm.id.unwrap_or_default();
 
     let meta = NoteMeta {
@@ -309,7 +309,7 @@ fn strip_html_and_markdown(input: &str) -> String {
             continue;
         }
 
-        // Markdown links: [text](url) — keep the text, skip the URL
+        // Markdown links: [text](url) - keep the text, skip the URL
         if ch == '[' {
             let mut link_text = String::new();
             let mut depth = 1;

src-tauri/src/vault/operations.rs

@@ -281,7 +281,7 @@ fn read_note_entry(path: &Path, vault_root: &Path) -> Result<NoteEntry, String>
 /// uses filesystem timestamps for dates. No preview text.
 #[cfg(target_os = "android")]
 fn read_note_entry_metadata_only(path: &Path, vault_root: &Path) -> Result<NoteEntry, String> {
-    // Read first 2KB — enough for frontmatter with tags, title, pinned
+    // Read first 2KB - enough for frontmatter with tags, title, pinned
     let mut file = fs::File::open(path).map_err(|e| e.to_string())?;
     let mut buf = vec![0u8; 2048];
     let bytes_read = file.read(&mut buf).map_err(|e| e.to_string())?;
@@ -917,7 +917,6 @@ pub fn get_trash_contents(vault_path: &str) -> Result<TrashContents, String> {
                 notes.push(note);
             }
         } else if path.is_dir() {
-            // Deleted notebook — count .md files inside
             let note_count = WalkDir::new(&path)
                 .min_depth(1)
                 .into_iter()

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "../node_modules/@tauri-apps/cli/config.schema.json",
   "productName": "HelixNotes",
-  "version": "1.2.6",
+  "version": "1.2.9",
   "identifier": "com.helixnotes.app",
   "build": {
     "frontendDist": "../build",

src/lib/api.ts

@@ -267,6 +267,10 @@ export async function openFile(path: string): Promise<void> {
   return invoke("open_file", { path });
 }
 
+export async function openUrl(url: string): Promise<void> {
+  return invoke("open_url", { url });
+}
+
 export async function copyFileTo(
   source: string,
   destination: string,
@@ -274,6 +278,17 @@ export async function copyFileTo(
   return invoke("copy_file_to", { source, destination });
 }
 
+export async function writeBytesTo(
+  destination: string,
+  data: Uint8Array,
+): Promise<void> {
+  return invoke("write_bytes_to", { destination, data: Array.from(data) });
+}
+
+export async function copyPngToClipboard(data: Uint8Array): Promise<void> {
+  return invoke("copy_png_to_clipboard", { data: Array.from(data) });
+}
+
 // ── Backup ──
 
 export async function createBackup(): Promise<void> {

src/lib/components/AppLayout.svelte

@@ -34,13 +34,19 @@
 		tags,
 		notes,
 		viewMode,
+		activeTag,
 		updateAvailable as globalUpdateAvailable,
-		settingsTab
+		settingsTab,
+		navHistory,
+		viewerNote,
+		notebookSortMode,
+		notebookOrder
 	} from '$lib/stores/app';
 
 	const appWindow = getCurrentWindow();
 	const isMac = navigator.platform.startsWith('Mac');
 	const isMobile = /android|ios/i.test(navigator.userAgent);
+	const isAndroid = /android/i.test(navigator.userAgent);
 	import { loadVaultState, saveVaultState, readNote, createDailyNote, createBackup, getPendingOpenFile, addQuickAccess, removeQuickAccess, getQuickAccess, setTheme } from '$lib/api';
 	import { debounce } from '$lib/utils/debounce';
 	import { openNoteWindow } from '$lib/utils/window';
@@ -58,9 +64,7 @@
 	let isQuickAccess = $derived(noteRelativePath ? $quickAccessPaths.includes(noteRelativePath) : false);
 	let backupInterval: ReturnType<typeof setInterval> | null = null;
 
-	let navigatingFromHistory = false;
-	let noteHistory: string[] = [];
-	let noteHistoryIndex = -1;
+
 
 	function parseFrequencyMs(freq: string): number {
 		switch (freq) {
@@ -91,42 +95,51 @@
 	// Track note navigation in history stack
 	$effect(() => {
 		const path = $activeNotePath;
-		if (navigatingFromHistory) {
-			navigatingFromHistory = false;
-			return;
-		}
-		if (path) {
-			// Trim forward history and push
-			noteHistory = [...noteHistory.slice(0, noteHistoryIndex + 1), path];
-			noteHistoryIndex = noteHistory.length - 1;
-		}
+		if (path) navHistory.push(path);
 	});
 
 	function navigateHistory(direction: -1 | 1) {
-		const newIndex = noteHistoryIndex + direction;
-		if (newIndex < 0 || newIndex >= noteHistory.length) return;
-		const path = noteHistory[newIndex];
-		noteHistoryIndex = newIndex;
-		navigatingFromHistory = true;
+		const path = navHistory.go(direction);
+		if (!path) return;
 		readNote(path).then((content) => {
 			editor?.flushSave();
 			$activeNote = content;
 			$activeNotePath = path;
 			$editorDirty = false;
 			editor?.loadNote(path, content.content);
-		}).catch(() => {
-			// Note may have been deleted, ignore
-		});
+		}).catch(() => {});
 	}
 
 	async function handleOpenFile(filePath: string) {
 		if (!filePath || !filePath.endsWith('.md')) return;
 		const config = get(appConfig);
 		const vaultRoot = config?.active_vault;
-		if (!vaultRoot || !filePath.startsWith(vaultRoot)) return;
+		const isExternal = !vaultRoot || !filePath.startsWith(vaultRoot + '/');
+
+		// External .md → viewer mode (skipped on Android)
+		if (isExternal) {
+			if (isAndroid) return;
+			try {
+				const content = await readNote(filePath);
+				editor?.flushSave();
+				$viewerNote = { path: filePath, content: content.content };
+				$activeNote = content;
+				$activeNotePath = filePath;
+				$editorDirty = false;
+				$readOnly = true;
+				$focusMode = true;
+				editor?.loadNote(filePath, content.content);
+			} catch (e) {
+				console.error('Failed to open external file:', e);
+			}
+			return;
+		}
+
+		// Vault file: normal flow
 		try {
 			const content = await readNote(filePath);
 			editor?.flushSave();
+			$viewerNote = null;
 			$activeNote = content;
 			$activeNotePath = filePath;
 			$editorDirty = false;
@@ -142,7 +155,9 @@
 			sidebar_width: $sidebarWidth,
 			notelist_width: $notelistWidth,
 			sidebar_collapsed: $sidebarCollapsed,
-			collapsed_notebooks: $collapsedNotebooks
+			collapsed_notebooks: $collapsedNotebooks,
+			notebook_sort_mode: $notebookSortMode,
+			notebook_order: $notebookOrder
 		};
 		try {
 			await saveVaultState(state);
@@ -160,6 +175,8 @@
 	}
 
 	function handleNoteSelected(path: string, content: string) {
+		// Selecting a real vault note exits viewer mode
+		$viewerNote = null;
 		editor?.loadNote(path, content);
 		if (isMobile) $mobileView = 'editor';
 	}
@@ -210,14 +227,13 @@
 			}
 			const targetDepth = view === 'sidebar' ? 0 : view === 'notelist' ? 1 : 2;
 			if (targetDepth > historyDepth) {
-				// Forward navigation — push entries for each level skipped
+				// Forward navigation - push entries for each level skipped
 				for (let d = historyDepth + 1; d <= targetDepth; d++) {
 					const v = d === 1 ? 'notelist' : 'editor';
 					history.pushState({ mobileView: v, depth: d }, '');
 				}
 				historyDepth = targetDepth;
 			} else if (targetDepth < historyDepth) {
-				// Programmatic back (e.g. mobileBack button) — go back in history
 				const steps = historyDepth - targetDepth;
 				historyDepth = targetDepth;
 				navFromPopstate = true; // suppress the popstate that history.go triggers
@@ -252,6 +268,7 @@
 
 	function handleKeydown(e: KeyboardEvent) {
 		const mod = e.ctrlKey || e.metaKey;
+		const code = e.code;
 		if (e.altKey && e.key === 'ArrowLeft') {
 			e.preventDefault();
 			navigateHistory(-1);
@@ -262,11 +279,12 @@
 			navigateHistory(1);
 			return;
 		}
-		if (mod && !e.shiftKey && e.key === 'n') {
+		if (mod && !e.shiftKey && code === 'KeyN') {
 			e.preventDefault();
 			createAndFocusNote();
+			return;
 		}
-		if (mod && e.shiftKey && e.key === 'N') {
+		if (mod && e.shiftKey && code === 'KeyN') {
 			e.preventDefault();
 			const isDark = $theme === 'dark' || ($theme === 'system' && window.matchMedia('(prefers-color-scheme: dark)').matches);
 			const next = isDark ? 'light' : 'dark';
@@ -274,12 +292,12 @@
 			setTheme(next);
 			return;
 		}
-		if (mod && e.shiftKey && e.key === 'F') {
+		if (mod && e.shiftKey && code === 'KeyF') {
 			e.preventDefault();
 			$showSearch = true;
 			return;
 		}
-		if (mod && !e.shiftKey && e.key === 'f') {
+		if (mod && !e.shiftKey && code === 'KeyF') {
 			e.preventDefault();
 			if ($activeNotePath) {
 				editor?.openNoteSearch();
@@ -288,23 +306,25 @@
 			}
 			return;
 		}
-		if (mod && e.key === 'p') {
+		if (mod && !e.shiftKey && code === 'KeyP') {
 			e.preventDefault();
 			$showCommandPalette = true;
+			return;
 		}
-		if (mod && e.key === 's') {
+		if (mod && !e.shiftKey && code === 'KeyS') {
 			e.preventDefault();
 			editor?.forceSave();
+			return;
 		}
-		if (mod && e.key === 'k' && !e.shiftKey && $activeNotePath && !$sourceMode) {
+		if (mod && code === 'KeyK' && !e.shiftKey && $activeNotePath && !$sourceMode) {
 			e.preventDefault();
 			editor?.addLinkFromToolbar();
 		}
-		if (mod && e.shiftKey && e.key === 'M') {
+		if (mod && e.shiftKey && code === 'KeyM') {
 			e.preventDefault();
 			$sourceMode = !$sourceMode;
 		}
-		if (mod && e.shiftKey && e.key === 'W') {
+		if (mod && e.shiftKey && code === 'KeyW') {
 			e.preventDefault();
 			if ($activeNotePath && $activeNote) {
 				openNoteWindow($activeNotePath, $activeNote.meta.title);
@@ -315,13 +335,14 @@
 			$sidebarCollapsed = !$sidebarCollapsed;
 			return;
 		}
-		if (mod && e.shiftKey && e.key === 'E') {
+		if (mod && e.shiftKey && code === 'KeyE') {
 			e.preventDefault();
 			$focusMode = !$focusMode;
 			return;
 		}
-		if (mod && e.shiftKey && e.key === 'R') {
+		if (mod && e.shiftKey && code === 'KeyR') {
 			e.preventDefault();
+			if ($viewerNote) return; // viewer mode is always read-only
 			$readOnly = !$readOnly;
 			return;
 		}
@@ -361,6 +382,12 @@
 		persistState();
 	});
 
+	$effect(() => {
+		$notebookSortMode;
+		$notebookOrder;
+		persistState();
+	});
+
 	onMount(async () => {
 		let lastNotePath: string | null = null;
 		try {
@@ -369,6 +396,8 @@
 			$notelistWidth = state.notelist_width;
 			$sidebarCollapsed = state.sidebar_collapsed;
 			$collapsedNotebooks = state.collapsed_notebooks ?? [];
+			$notebookSortMode = state.notebook_sort_mode === 'manual' ? 'manual' : 'alphabetical';
+			$notebookOrder = state.notebook_order ?? {};
 			lastNotePath = state.last_open_note ?? null;
 		} catch (_) {}
 
@@ -489,7 +518,7 @@
 					{#if $mobileView === 'sidebar'}
 						HelixNotes
 					{:else}
-						{$activeNotebook?.name || 'All Notes'}
+						{#if $viewMode === 'notebook'}{$activeNotebook?.name ?? 'Notebook'}{:else if $viewMode === 'tag'}#{$activeTag}{:else if $viewMode === 'quickaccess'}Quick Access{:else if $viewMode === 'daily'}Daily Notes{:else if $viewMode === 'trash'}Trash{:else}All Notes{/if}
 					{/if}
 				</span>
 				{#if $globalUpdateAvailable && $mobileView === 'sidebar'}
@@ -593,7 +622,7 @@
 				<Sidebar bind:this={sidebar} onViewChanged={handleViewChanged} />
 			</div>
 			<div class="mobile-panel" class:active={$mobileView === 'notelist'}>
-				<NoteList bind:this={noteList} onNoteSelected={handleNoteSelected} onBeforeNoteSwitch={() => editor?.flushSave()} onNoteMoved={() => sidebar?.refresh()} />
+				<NoteList bind:this={noteList} onNoteSelected={handleNoteSelected} onBeforeNoteSwitch={() => editor?.flushSave()} onNoteMoved={() => sidebar?.refresh()} onNoteCreated={() => editor?.focusTitle()} />
 				<button class="mobile-fab" onclick={createAndFocusNote} title="New Note">
 					<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round">
 						<path d="M12 5v14M5 12h14" />
@@ -658,7 +687,7 @@
 				{/if}
 
 				<div class="notelist-panel" style="width: {$notelistWidth}px">
-					<NoteList bind:this={noteList} onNoteSelected={handleNoteSelected} onBeforeNoteSwitch={() => editor?.flushSave()} onNoteMoved={() => sidebar?.refresh()} />
+					<NoteList bind:this={noteList} onNoteSelected={handleNoteSelected} onBeforeNoteSwitch={() => editor?.flushSave()} onNoteMoved={() => sidebar?.refresh()} onNoteCreated={() => editor?.focusTitle()} />
 				</div>
 
 				<ResizeHandle onResize={handleNotelistResize} />

src/lib/components/InfoPanel.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
 	import { showInfo, appConfig } from '$lib/stores/app';
 	import { getVaultStats } from '$lib/api';
-	import { openUrl } from '@tauri-apps/plugin-opener';
+	import { openUrl } from '$lib/api';
 	import { getVersion } from '@tauri-apps/api/app';
 	import type { VaultStats } from '$lib/types';
 

src/lib/components/NoteList.svelte

@@ -36,12 +36,14 @@
 	} from '$lib/api';
 	import { formatRelativeTime } from '$lib/utils/time';
 	import { openNoteWindow } from '$lib/utils/window';
+	import { revealItemInDir } from '@tauri-apps/plugin-opener';
 	import type { NoteEntry, TrashNotebookEntry, SortMode } from '$lib/types';
 
-	let { onNoteSelected = (_path: string, _content: string) => {}, onNoteMoved = () => {}, onBeforeNoteSwitch = () => {} }: {
+	let { onNoteSelected = (_path: string, _content: string) => {}, onNoteMoved = () => {}, onBeforeNoteSwitch = () => {}, onNoteCreated = () => {} }: {
 		onNoteSelected?: (path: string, content: string) => void;
 		onNoteMoved?: () => void;
 		onBeforeNoteSwitch?: () => void;
+		onNoteCreated?: () => void;
 	} = $props();
 
 	const modKey = navigator.platform.startsWith('Mac') ? '⌘' : 'Ctrl';
@@ -230,6 +232,15 @@
 		if (listContainer) listContainer.scrollTop = 0;
 	});
 
+	// Invalidate quickaccess cache when starred notes change (e.g. from Editor star toggle)
+	$effect(() => {
+		$quickAccessPaths;
+		noteCache.delete('quickaccess');
+		if ($viewMode === 'quickaccess') {
+			refresh();
+		}
+	});
+
 	// Track container height via ResizeObserver
 	$effect(() => {
 		if (!listContainer) return;
@@ -369,6 +380,7 @@
 			noteCache.clear();
 			await refresh();
 			await selectNote(entry);
+			onNoteCreated();
 		} catch (e) {
 			console.error('Failed to create note:', e);
 		}
@@ -703,7 +715,7 @@
 			return;
 		}
 		if (e.shiftKey) {
-			// Range select — use lastClickedPath or active note as anchor
+			// Range select - use lastClickedPath or active note as anchor
 			const anchor = lastClickedPath || $activeNotePath;
 			if (!anchor) { selectNote(note); return; }
 			const paths = $sortedNotes.map(n => n.path);
@@ -720,7 +732,6 @@
 			}
 			return;
 		}
-		// Normal click — clear selection, open note
 		clearSelection();
 		selectNote(note);
 	}
@@ -1090,6 +1101,11 @@
 										<path d="M12 17v5"/><path d="M9 2h6l-1 7h4l-2 4H8l-2-4h4L9 2z"/>
 									</svg>
 								{/if}
+								{#if $viewMode !== 'quickaccess' && $quickAccessPaths.includes(note.relative_path)}
+									<svg width="13" height="13" viewBox="0 0 24 24" fill="currentColor" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="quickaccess-icon">
+										<polygon points="12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2"/>
+									</svg>
+								{/if}
 								{note.meta.title}
 							</span>
 							{#if getNotebookPath(note)}
@@ -1104,6 +1120,11 @@
 									<path d="M12 17v5"/><path d="M9 2h6l-1 7h4l-2 4H8l-2-4h4L9 2z"/>
 								</svg>
 							{/if}
+							{#if $viewMode !== 'quickaccess' && $quickAccessPaths.includes(note.relative_path)}
+								<svg width="13" height="13" viewBox="0 0 24 24" fill="currentColor" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="quickaccess-icon">
+									<polygon points="12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2"/>
+								</svg>
+							{/if}
 							{note.meta.title}
 						</div>
 						<div class="note-preview">{note.preview}</div>
@@ -1290,6 +1311,14 @@
 				</svg>
 				Open in New Window
 			</button>
+			{#if !isMobile}
+			<button onclick={async () => { const n = contextMenu!.note; contextMenu = null; try { await revealItemInDir(n.path); } catch (e) { console.error('Failed to reveal in file manager:', e); } }}>
+				<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+					<path d="M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z"/>
+				</svg>
+				Show in File Manager
+			</button>
+			{/if}
 			<button onclick={() => startRename(contextMenu!.note)}>
 				<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
 					<path d="M17 3a2.85 2.85 0 114 4L7.5 20.5 2 22l1.5-5.5Z"/><path d="m15 5 4 4"/>
@@ -1412,6 +1441,19 @@
 		padding: 4px;
 	}
 
+	.list-content::-webkit-scrollbar {
+		width: 8px;
+	}
+
+	.list-content::-webkit-scrollbar-thumb {
+		background: var(--text-tertiary);
+		border-radius: 4px;
+	}
+
+	.list-content::-webkit-scrollbar-thumb:hover {
+		background: var(--text-secondary);
+	}
+
 	.note-item {
 		display: block;
 		width: 100%;
@@ -1608,6 +1650,11 @@
 		flex-shrink: 0;
 	}
 
+	.quickaccess-icon {
+		color: var(--text-accent);
+		flex-shrink: 0;
+	}
+
 	.note-preview {
 		font-size: 0.85em;
 		color: var(--text-tertiary);

src/lib/components/NoteWindow.svelte

@@ -67,11 +67,12 @@
 
 	function handleKeydown(e: KeyboardEvent) {
 		const mod = e.ctrlKey || e.metaKey;
-		if (mod && e.key === 's') {
+		if (mod && !e.shiftKey && e.code === 'KeyS') {
 			e.preventDefault();
 			editor?.forceSave();
+			return;
 		}
-		if (mod && e.shiftKey && e.key === 'M') {
+		if (mod && e.shiftKey && e.code === 'KeyM') {
 			e.preventDefault();
 			$sourceMode = !$sourceMode;
 		}

src/lib/components/SettingsPanel.svelte

@@ -1,10 +1,10 @@
 <script lang="ts">
-	import { showSettings, theme, appConfig, updateAvailable as globalUpdateAvailable, updateObj as globalUpdateObj, installType, settingsTab, vaultReady, androidApkUrl, checkForUpdateMobile } from '$lib/stores/app';
+	import { showSettings, theme, appConfig, updateAvailable as globalUpdateAvailable, updateObj as globalUpdateObj, installType, settingsTab, vaultReady, androidApkUrl, checkForUpdateMobile, notebookSortMode } from '$lib/stores/app';
 	import { setTheme, setAccentColor, setFontSize, setFontFamily, setLineHeight, setGeneralSettings, importObsidian, createBackup, listBackups, restoreBackup, deleteBackup, setBackupSettings, setAiSettings, testAiConnection } from '$lib/api';
 	import { open as openDialog } from '@tauri-apps/plugin-dialog';
 	import { listen } from '@tauri-apps/api/event';
 	import { getVersion } from '@tauri-apps/api/app';
-	import { openUrl } from '@tauri-apps/plugin-opener';
+	import { openUrl } from '$lib/api';
 	import type { ImportResult, BackupEntry } from '$lib/types';
 
 	const isMobile = /android|ios/i.test(navigator.userAgent);
@@ -599,6 +599,20 @@
 								</label>
 							</div>
 
+							<div class="settings-section">
+								<h3>Notebooks</h3>
+								<label class="setting-toggle">
+									<span class="setting-label">
+										<span class="setting-name">Sort order</span>
+										<span class="setting-desc">Alphabetical (default) or manual. Drag notebooks above/below each other to reorder.</span>
+									</span>
+								</label>
+								<div class="setting-options" style="margin-top: 8px;">
+									<button class="option-btn" class:active={$notebookSortMode === 'alphabetical'} onclick={() => { $notebookSortMode = 'alphabetical'; }}>Alphabetical</button>
+									<button class="option-btn" class:active={$notebookSortMode === 'manual'} onclick={() => { $notebookSortMode = 'manual'; }}>Manual</button>
+								</div>
+							</div>
+
 							<div class="settings-section">
 								<h3>Time Format</h3>
 								<div class="setting-options">
@@ -717,6 +731,7 @@
 								</label>
 							</div>
 
+
 							{#if !isMobile}
 							<div class="settings-section">
 								<h3>PDF Preview</h3>

src/lib/components/Sidebar.svelte

@@ -16,7 +16,9 @@
 		appConfig,
 		quickAccessPaths,
 		collapsedNotebooks,
-		rootNoteCount
+		rootNoteCount,
+		notebookSortMode,
+		notebookOrder
 	} from '$lib/stores/app';
 	import { getNotebooks, getAllTags, createNotebook, deleteNotebook, renameNotebook, moveNotebook, getNotebookIcons, setNotebookIcon, saveAttachment, getQuickAccess, addQuickAccess, removeQuickAccess, emptyTrash, moveNote, readNote, getNotes, countRootNotes } from '$lib/api';
 	import { open as openDialog } from '@tauri-apps/plugin-dialog';
@@ -36,7 +38,23 @@
 	let newNotebookName = $state('');
 	let showNewNotebook = $state(false);
 	let dropTargetPath = $state<string | null>(null);
+	let dropPosition = $state<'above' | 'into' | 'below' | null>(null);
 	let draggedNotebookPath = $state<string | null>(null);
+
+	// Apply manual ordering recursively when in 'manual' sort mode.
+	// In 'alphabetical' mode the Rust scanner already sorts, so we pass through unchanged.
+	function sortNotebooksTree(tree: NotebookEntry[]): NotebookEntry[] {
+		if ($notebookSortMode !== 'manual') return tree;
+		const order = $notebookOrder;
+		const sorted = [...tree].sort((a, b) => {
+			const oa = order[a.path] ?? Number.MAX_SAFE_INTEGER;
+			const ob = order[b.path] ?? Number.MAX_SAFE_INTEGER;
+			if (oa !== ob) return oa - ob;
+			return a.name.toLowerCase().localeCompare(b.name.toLowerCase());
+		});
+		return sorted.map(nb => ({ ...nb, children: sortNotebooksTree(nb.children) }));
+	}
+	let sortedNotebooks = $derived(sortNotebooksTree($notebooks));
 	let contextMenu = $state<{ x: number; y: number; notebook: NotebookEntry } | null>(null);
 	let trashContextMenu = $state<{ x: number; y: number } | null>(null);
 	let tagsCollapsed = $state(true);
@@ -50,6 +68,7 @@
 		}
 	}
 
+
 	export async function refresh() {
 		try {
 			if (isMobile) {
@@ -264,6 +283,94 @@
 		}
 	}
 
+	function findSiblingsOfPath(tree: NotebookEntry[], parentPath: string, vaultRoot: string): NotebookEntry[] {
+		if (parentPath === vaultRoot) return tree;
+		for (const nb of tree) {
+			if (nb.path === parentPath) return nb.children;
+			if (nb.children.length > 0) {
+				const found = findSiblingsOfPath(nb.children, parentPath, vaultRoot);
+				if (found.length > 0) return found;
+			}
+		}
+		return [];
+	}
+
+	async function handleNotebookReorder(srcPath: string, targetPath: string, position: 'above' | 'below') {
+		dropTargetPath = null;
+		dropPosition = null;
+		draggedNotebookPath = null;
+		if (srcPath === targetPath) return;
+		if (targetPath.startsWith(srcPath + '/')) return; // can't move into descendant
+		const vaultRoot = $appConfig?.active_vault;
+		if (!vaultRoot) return;
+
+		const srcParent = srcPath.substring(0, srcPath.lastIndexOf('/'));
+		const targetParent = targetPath.substring(0, targetPath.lastIndexOf('/'));
+		let actualSrcPath = srcPath;
+
+		try {
+			// Step 1: if different parents, move src into target's parent first
+			if (srcParent !== targetParent) {
+				const oldName = srcPath.split('/').pop() || '';
+				const newPath = targetParent === vaultRoot
+					? vaultRoot + '/' + oldName
+					: targetParent + '/' + oldName;
+				await moveNotebook(srcPath, targetParent);
+				// Migrate paths in collapsedNotebooks
+				$collapsedNotebooks = $collapsedNotebooks.map(p => {
+					if (p === srcPath) return newPath;
+					if (p.startsWith(srcPath + '/')) return newPath + p.slice(srcPath.length);
+					return p;
+				});
+				// Migrate paths in notebookOrder
+				const migrated: Record<string, number> = {};
+				for (const [p, v] of Object.entries($notebookOrder)) {
+					if (p === srcPath) migrated[newPath] = v;
+					else if (p.startsWith(srcPath + '/')) migrated[newPath + p.slice(srcPath.length)] = v;
+					else migrated[p] = v;
+				}
+				$notebookOrder = migrated;
+				// Update active notebook/note
+				if ($activeNotebook?.path === srcPath || $activeNotebook?.path.startsWith(srcPath + '/')) {
+					selectAllNotes();
+				}
+				if ($activeNotePath && $activeNotePath.startsWith(srcPath + '/')) {
+					const newNotePath = newPath + $activeNotePath.slice(srcPath.length);
+					$activeNotePath = newNotePath;
+					$activeNote = await readNote(newNotePath);
+				}
+				$notebookIcons = await getNotebookIcons();
+				await refresh();
+				actualSrcPath = newPath;
+			}
+
+			// Step 2: reorder within target's parent
+			const siblings = findSiblingsOfPath($notebooks, targetParent, vaultRoot);
+			const sortedSiblings = sortNotebooksTree(siblings);
+			const without = sortedSiblings.filter(s => s.path !== actualSrcPath);
+			const targetIdx = without.findIndex(s => s.path === targetPath);
+			if (targetIdx === -1) return;
+			const insertIdx = position === 'above' ? targetIdx : targetIdx + 1;
+			const newSequence = [
+				...without.slice(0, insertIdx).map(s => s.path),
+				actualSrcPath,
+				...without.slice(insertIdx).map(s => s.path),
+			];
+
+			// Assign sequential positions to all siblings (only within this parent)
+			const newOrder = { ...$notebookOrder };
+			newSequence.forEach((path, idx) => {
+				newOrder[path] = idx;
+			});
+			$notebookOrder = newOrder;
+
+			// Auto-enable manual mode (the act of reordering implies user wants this)
+			if ($notebookSortMode !== 'manual') $notebookSortMode = 'manual';
+		} catch (e) {
+			console.error('Failed to reorder notebook:', e);
+		}
+	}
+
 	function startRename(nb: NotebookEntry) {
 		contextMenu = null;
 		editingNotebook = nb.path;
@@ -490,7 +597,7 @@
 						class:active={$viewMode === 'notebook' && $activeNotebook?.relative_path === ''}
 						onclick={selectUnfiled}
 					>
-						<span class="chevron-spacer"></span>
+						<span style="width:13px;flex-shrink:0"></span>
 						<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="flex-shrink:0;opacity:0.6">
 							<path d="M14 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V8z" />
 							<polyline points="14 2 14 8 20 8" />
@@ -498,7 +605,7 @@
 						<span class="notebook-name">Unfiled Notes <span class="notebook-count">{$rootNoteCount}</span></span>
 					</button>
 				{/if}
-				{#each $notebooks as nb (nb.path)}
+				{#each sortedNotebooks as nb (nb.path)}
 					{@render notebookItem(nb, 0)}
 				{/each}
 			</div>
@@ -648,13 +755,15 @@
 		<button
 			class="notebook-item"
 			class:active={$viewMode === 'notebook' && $activeNotebook?.path === nb.path}
-			class:drop-target={dropTargetPath === nb.path}
+			class:drop-target={dropTargetPath === nb.path && dropPosition === 'into'}
+			class:drop-above={dropTargetPath === nb.path && dropPosition === 'above'}
+			class:drop-below={dropTargetPath === nb.path && dropPosition === 'below'}
 			style="padding-left: {8 + depth * 16}px"
 			draggable="true"
 			onclick={() => selectNotebook(nb)}
 			oncontextmenu={(e) => onContextMenu(e, nb)}
 			ondragstart={(e) => { draggedNotebookPath = nb.path; e.dataTransfer!.setData('text/plain', nb.path); e.dataTransfer!.effectAllowed = 'move'; }}
-			ondragend={() => { draggedNotebookPath = null; }}
+			ondragend={() => { draggedNotebookPath = null; dropPosition = null; }}
 			ondragover={(e) => {
 				e.preventDefault();
 				if (draggedNotebookPath) {
@@ -663,17 +772,33 @@
 						e.dataTransfer!.dropEffect = 'none';
 						return;
 					}
-					// Prevent no-op (already in this parent)
+				}
+				// Decide drop position from cursor Y within the row: top 30% = above, bottom 30% = below, middle = into
+				const rect = (e.currentTarget as HTMLElement).getBoundingClientRect();
+				const relY = (e.clientY - rect.top) / rect.height;
+				let pos: 'above' | 'into' | 'below';
+				if (draggedNotebookPath && relY < 0.3) pos = 'above';
+				else if (draggedNotebookPath && relY > 0.7) pos = 'below';
+				else pos = 'into';
+				// For 'into', reject if already in that parent (no-op)
+				if (pos === 'into' && draggedNotebookPath) {
 					const parentDir = draggedNotebookPath.substring(0, draggedNotebookPath.lastIndexOf('/'));
 					if (parentDir === nb.path) { e.dataTransfer!.dropEffect = 'none'; return; }
 				}
 				e.dataTransfer!.dropEffect = 'move';
 				dropTargetPath = nb.path;
+				dropPosition = pos;
 			}}
-			ondragleave={() => { if (dropTargetPath === nb.path) dropTargetPath = null; }}
+			ondragleave={() => { if (dropTargetPath === nb.path) { dropTargetPath = null; dropPosition = null; } }}
 			ondrop={(e) => {
+				e.preventDefault();
+				const pos = dropPosition;
 				if (draggedNotebookPath) {
-					handleNotebookDrop(e, nb.path);
+					if (pos === 'above' || pos === 'below') {
+						handleNotebookReorder(draggedNotebookPath, nb.path, pos);
+					} else {
+						handleNotebookDrop(e, nb.path);
+					}
 				} else {
 					handleNoteDrop(e, nb);
 				}
@@ -908,6 +1033,12 @@
 		outline-offset: -2px;
 		border-radius: 6px;
 	}
+	.notebook-item.drop-above {
+		box-shadow: 0 -2px 0 0 var(--accent);
+	}
+	.notebook-item.drop-below {
+		box-shadow: 0 2px 0 0 var(--accent);
+	}
 
 	.chevron {
 		display: flex;

src/lib/components/TitleBar.svelte

@@ -31,7 +31,7 @@
 		const target = e.target as HTMLElement;
 		if (target.closest('.titlebar-controls') || target.closest('.titlebar-actions')) return;
 
-		// Don't start dragging near window edges — let Tauri handle resize
+		// Don't start dragging near window edges - let Tauri handle resize
 		if (!maximized) {
 			const rect = (e.currentTarget as HTMLElement).getBoundingClientRect();
 			if (e.clientY - rect.top < RESIZE_EDGE || e.clientX - rect.left < RESIZE_EDGE) return;
@@ -39,7 +39,6 @@
 
 		const now = Date.now();
 		if (now - lastMouseDown < 300) {
-			// Double-click detected — maximize/restore
 			appWindow.toggleMaximize();
 			lastMouseDown = 0;
 			return;
@@ -221,6 +220,7 @@
 		color: var(--text-primary);
 	}
 
+
 	.switch-vault-btn.active {
 		background: color-mix(in srgb, var(--accent) 18%, transparent);
 		color: var(--accent);

src/lib/components/VaultPicker.svelte

@@ -154,7 +154,7 @@
 				<span class="vault-path-hint">{fullPath}</span>
 			</div>
 		{:else}
-			<p class="description">Your notes are stored as standard Markdown (.md) files. Pick any folder — existing .md files will be recognized automatically.</p>
+			<p class="description">Your notes are stored as standard Markdown (.md) files. Pick any folder - existing .md files will be recognized automatically.</p>
 		{/if}
 
 		{#if error}

src/lib/stores/app.ts

@@ -1,4 +1,4 @@
-import { writable, derived } from "svelte/store";
+import { writable, derived, get } from "svelte/store";
 import type {
   AppConfig,
   NoteEntry,
@@ -29,6 +29,13 @@ export const notebookIcons = writable<Record<string, string>>({});
 export const quickAccessPaths = writable<string[]>([]);
 export const collapsedNotebooks = writable<string[]>([]);
 
+// Notebook sort: 'alphabetical' (default) or 'manual' (drag-to-reorder, persisted in notebookOrder).
+export const notebookSortMode = writable<"alphabetical" | "manual">(
+  "alphabetical",
+);
+// Map from notebook absolute path → ordinal position (lower = earlier). Only consulted when notebookSortMode === 'manual'.
+export const notebookOrder = writable<Record<string, number>>({});
+
 // Data
 export const notebooks = writable<NotebookEntry[]>([]);
 export const rootNoteCount = writable<number>(0);
@@ -39,6 +46,13 @@ export const activeNotePath = writable<string | null>(null);
 export const activeNotebook = writable<NotebookEntry | null>(null);
 export const activeTag = writable<string | null>(null);
 
+// External-file viewer mode: set when an .md file outside the active vault is opened.
+// While set, the editor is forced read-only, autosave is suppressed, and a banner
+// offering "Import to vault" / "Close" is shown.
+export const viewerNote = writable<{ path: string; content: string } | null>(
+  null,
+);
+
 // Mobile state
 export const mobileView = writable<"sidebar" | "notelist" | "editor">(
   "sidebar",
@@ -71,7 +85,7 @@ export async function checkForUpdate() {
       updateObj.set(update);
     }
   } catch {
-    // Silent fail — don't disrupt app startup
+    // Silent fail - don't disrupt app startup
   }
 }
 
@@ -106,6 +120,35 @@ export async function checkForUpdateMobile() {
   }
 }
 
+// Note navigation history
+interface NavHistoryState { stack: string[]; index: number; skipping: boolean; }
+function createNavHistory() {
+  const store = writable<NavHistoryState>({ stack: [], index: -1, skipping: false });
+  return {
+    subscribe: store.subscribe,
+    push(path: string) {
+      store.update(s => {
+        if (s.skipping) return { ...s, skipping: false };
+        const trimmed = s.stack.slice(0, s.index + 1);
+        return { stack: [...trimmed, path], index: trimmed.length, skipping: false };
+      });
+    },
+    go(direction: -1 | 1): string | null {
+      let target: string | null = null;
+      store.update(s => {
+        const newIdx = s.index + direction;
+        if (newIdx < 0 || newIdx >= s.stack.length) return s;
+        target = s.stack[newIdx];
+        return { ...s, index: newIdx, skipping: true };
+      });
+      return target;
+    },
+  };
+}
+export const navHistory = createNavHistory();
+export const canGoBack = derived(navHistory, $h => $h.index > 0);
+export const canGoForward = derived(navHistory, $h => $h.index < $h.stack.length - 1);
+
 // Derived
 export const sortedNotes = derived(
   [notes, sortMode, viewMode],
@@ -145,6 +188,8 @@ export const vaultState = derived(
     notelistWidth,
     sidebarCollapsed,
     collapsedNotebooks,
+    notebookSortMode,
+    notebookOrder,
   ],
   ([
     $activeNotePath,
@@ -152,6 +197,8 @@ export const vaultState = derived(
     $notelistWidth,
     $sidebarCollapsed,
     $collapsedNotebooks,
+    $notebookSortMode,
+    $notebookOrder,
   ]) => {
     return {
       last_open_note: $activeNotePath,
@@ -159,6 +206,8 @@ export const vaultState = derived(
       notelist_width: $notelistWidth,
       sidebar_collapsed: $sidebarCollapsed,
       collapsed_notebooks: $collapsedNotebooks,
+      notebook_sort_mode: $notebookSortMode,
+      notebook_order: $notebookOrder,
     } satisfies VaultState;
   },
 );

src/lib/types.ts

@@ -86,6 +86,8 @@ export interface VaultState {
   notelist_width: number;
   sidebar_collapsed: boolean;
   collapsed_notebooks: string[];
+  notebook_sort_mode?: string;
+  notebook_order?: Record<string, number>;
 }
 
 export interface SearchResult {

src/routes/+layout.svelte

@@ -2,8 +2,7 @@
 	import { onMount } from 'svelte';
 	import '../app.css';
 	import { theme, appConfig, activeNote, activeNotePath, installType, checkForUpdate, checkForUpdateMobile } from '$lib/stores/app';
-	import { openUrl } from '@tauri-apps/plugin-opener';
-	import { openFile, readNote, getInstallType } from '$lib/api';
+	import { openFile, openUrl, readNote, getInstallType } from '$lib/api';
 	import { get } from 'svelte/store';
 
 	let { children } = $props();
@@ -68,7 +67,7 @@
 					}
 				}
 			}
-			// Internal .md note link — navigate within the app
+			// Internal .md note link - navigate within the app
 			if (absPath.endsWith('.md')) {
 				readNote(absPath).then((content) => {
 					activeNote.set({ ...content, content: content.content });