chore(release): v0.1.12

The bundled Hunspell dictionary (~49k SCOWL roots) lacked common words like
"cybersecurity", "scalable", and "assistantship", and checked words inside
URLs. On macOS, spelling now uses the system NSSpellChecker (same engine as
TextEdit/Safari): far better vocabulary, skips URLs, and respects words the
user has taught macOS. The custom/tech dictionaries and Harper grammar are
unchanged; non-macOS builds keep the Hunspell fallback.

package.json

@@ -1,7 +1,7 @@
 {
   "name": "margin-app",
   "private": true,
-  "version": "0.1.10",
+  "version": "0.1.12",
   "type": "module",
   "scripts": {
     "dev": "vite",

src-tauri/Cargo.lock

@@ -4713,11 +4713,14 @@ checksum = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
 
 [[package]]
 name = "margin-app"
-version = "0.1.7"
+version = "0.1.9"
 dependencies = [
  "base64 0.22.1",
  "fontdb",
  "harper-core",
+ "objc2",
+ "objc2-app-kit",
+ "objc2-foundation",
  "rand 0.8.6",
  "reqwest 0.12.28",
  "serde",
@@ -5138,9 +5141,17 @@ checksum = "d49e936b501e5c5bf01fda3a9452ff86dc3ea98ad5f283e1455153142d97518c"
 dependencies = [
  "bitflags 2.13.0",
  "block2",
+ "libc",
  "objc2",
+ "objc2-cloud-kit",
+ "objc2-core-data",
  "objc2-core-foundation",
+ "objc2-core-graphics",
+ "objc2-core-image",
+ "objc2-core-text",
+ "objc2-core-video",
  "objc2-foundation",
+ "objc2-quartz-core",
 ]
 
 [[package]]
@@ -5160,6 +5171,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b402a653efbb5e82ce4df10683b6b28027616a2715e90009947d50b8dd298fa"
 dependencies = [
+ "bitflags 2.13.0",
  "objc2",
  "objc2-foundation",
 ]
@@ -5220,6 +5232,19 @@ dependencies = [
  "objc2-core-graphics",
 ]
 
+[[package]]
+name = "objc2-core-video"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d425caf1df73233f29fd8a5c3e5edbc30d2d4307870f802d18f00d83dc5141a6"
+dependencies = [
+ "bitflags 2.13.0",
+ "objc2",
+ "objc2-core-foundation",
+ "objc2-core-graphics",
+ "objc2-io-surface",
+]
+
 [[package]]
 name = "objc2-encode"
 version = "4.1.0"

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "margin-app"
-version = "0.1.10"
+version = "0.1.12"
 description = "A Tauri App"
 authors = ["you"]
 edition = "2021"
@@ -31,7 +31,6 @@ fontdb = "0.23"
 typst = "0.14.2"
 typst-pdf = "0.14.2"
 typst-as-lib = "0.15.5"
-spellbook = "0.4"
 # Pinned exactly: the [patch] stubs below are tied to this version's burn/cubecl graph. A minor
 # bump could silently invalidate the patch ("unused") and pull the broken CUDA subtree back in,
 # so bump deliberately and re-audit the stubs. (see [patch.crates-io])
@@ -41,6 +40,18 @@ sha2 = "0.10"
 rand = "0.8"
 url = "2"
 
+# Spelling on macOS uses the system NSSpellChecker (same engine as TextEdit/Safari): far better
+# vocabulary than the bundled Hunspell dictionary and it skips URLs. These objc2 crates are already
+# in the graph via Tauri, so this adds nothing new to the build.
+[target.'cfg(target_os = "macos")'.dependencies]
+objc2 = "0.6"
+objc2-app-kit = { version = "0.3", features = ["NSSpellChecker"] }
+objc2-foundation = { version = "0.3", features = ["NSString", "NSArray", "NSRange", "NSTextCheckingResult"] }
+
+# Other platforms fall back to the bundled Hunspell dictionary via spellbook.
+[target.'cfg(not(target_os = "macos"))'.dependencies]
+spellbook = "0.4"
+
 # harper-core transitively declares an optional, disabled `burn-cuda` (CUDA backend).
 # Cargo still version-resolves that dead subtree, which currently fails (broken tracel-llvm
 # prereleases) and links-collides with `zip`'s lzma. Replace it with an empty stub so the

src-tauri/src/lib.rs

@@ -2,6 +2,8 @@ mod epub;
 mod fonts;
 mod gdrive;
 mod library;
+#[cfg(target_os = "macos")]
+mod macspell;
 mod pdf;
 mod project;
 mod proofing;

src-tauri/src/macspell.rs

@@ -0,0 +1,70 @@
+use std::collections::HashSet;
+
+use objc2::rc::autoreleasepool;
+use objc2_app_kit::NSSpellChecker;
+use objc2_foundation::{NSRange, NSString, NSTextCheckingType};
+
+pub struct MacIssue {
+    pub start: usize,
+    pub end: usize,
+    pub word: String,
+    pub suggestions: Vec<String>,
+}
+
+fn utf16_to_codepoint(text: &str, utf16_len: usize) -> Vec<usize> {
+    let mut map = Vec::with_capacity(utf16_len + 1);
+    let mut cp = 0;
+    for ch in text.chars() {
+        for _ in 0..ch.len_utf16() {
+            map.push(cp);
+        }
+        cp += 1;
+    }
+    map.push(cp);
+    map
+}
+
+pub fn check(text: &str, custom: &HashSet<String>) -> Vec<MacIssue> {
+    autoreleasepool(|_| {
+        let checker = NSSpellChecker::sharedSpellChecker();
+        let ns = NSString::from_str(text);
+        let len = ns.length();
+        let results = unsafe {
+            checker.checkString_range_types_options_inSpellDocumentWithTag_orthography_wordCount(
+                &ns,
+                NSRange { location: 0, length: len },
+                NSTextCheckingType::Spelling.bits(),
+                None,
+                0,
+                None,
+                std::ptr::null_mut(),
+            )
+        };
+
+        let map = utf16_to_codepoint(text, len);
+        let chars: Vec<char> = text.chars().collect();
+        let mut issues = Vec::new();
+        for result in results.iter() {
+            let range = result.range();
+            let start = map[range.location.min(len)];
+            let end = map[(range.location + range.length).min(len)];
+            let word: String = chars[start..end].iter().collect();
+            if custom.contains(&word.to_lowercase()) {
+                continue;
+            }
+            let mut suggestions = Vec::new();
+            if let Some(guesses) =
+                checker.guessesForWordRange_inString_language_inSpellDocumentWithTag(range, &ns, None, 0)
+            {
+                for guess in guesses.iter() {
+                    suggestions.push(guess.to_string());
+                    if suggestions.len() >= 5 {
+                        break;
+                    }
+                }
+            }
+            issues.push(MacIssue { start, end, word, suggestions });
+        }
+        issues
+    })
+}

src-tauri/src/proofing.rs

@@ -27,6 +27,7 @@ struct Harper {
 }
 
 pub struct Engine {
+    #[cfg(not(target_os = "macos"))]
     speller: Option<spellbook::Dictionary>,
     harper: Option<Harper>,
     custom: HashSet<String>,
@@ -87,6 +88,7 @@ fn load_custom(app: &tauri::AppHandle) -> HashSet<String> {
     set
 }
 
+#[cfg(not(target_os = "macos"))]
 fn build_speller(app: &tauri::AppHandle) -> Result<spellbook::Dictionary, String> {
     let aff = dict_file(app, "index.aff")?;
     let dic = dict_file(app, "index.dic")?;
@@ -100,18 +102,22 @@ fn build_harper() -> Harper {
     Harper { linter, dict }
 }
 
+#[cfg(not(target_os = "macos"))]
 fn is_word_char(c: char) -> bool {
     c.is_alphabetic()
 }
 
+#[cfg(not(target_os = "macos"))]
 fn has_irregular_case(word: &str) -> bool {
     word.chars().skip(1).any(|c| c.is_uppercase())
 }
 
+#[cfg(not(target_os = "macos"))]
 fn is_apostrophe(c: char) -> bool {
     c == '\'' || c == '\u{2019}'
 }
 
+#[cfg(not(target_os = "macos"))]
 fn collect_spelling(
     speller: &spellbook::Dictionary,
     custom: &HashSet<String>,
@@ -143,6 +149,10 @@ fn collect_spelling(
         }
         let mut suggestions = Vec::new();
         speller.suggest(&word, &mut suggestions);
+        let lower = word.to_lowercase();
+        if suggestions.iter().any(|s| s.to_lowercase() == lower) {
+            continue;
+        }
         suggestions.truncate(5);
         issues.push(Issue {
             start,
@@ -197,6 +207,7 @@ pub async fn proof_text(
             let mut custom = load_custom(&app);
             load_tech(&app, &mut custom);
             *guard = Some(Engine {
+                #[cfg(not(target_os = "macos"))]
                 speller: None,
                 harper: None,
                 custom,
@@ -207,10 +218,24 @@ pub async fn proof_text(
         let chars: Vec<char> = text.chars().collect();
         let mut issues = Vec::new();
         if spelling {
-            if engine.speller.is_none() {
+            #[cfg(target_os = "macos")]
-                engine.speller = Some(build_speller(&app)?);
+            for mi in crate::macspell::check(&text, &engine.custom) {
+                issues.push(Issue {
+                    start: mi.start,
+                    end: mi.end,
+                    kind: "spelling".into(),
+                    category: "Spelling".into(),
+                    message: format!("“{}” may be misspelled", mi.word),
+                    suggestions: mi.suggestions,
+                });
+            }
+            #[cfg(not(target_os = "macos"))]
+            {
+                if engine.speller.is_none() {
+                    engine.speller = Some(build_speller(&app)?);
+                }
+                collect_spelling(engine.speller.as_ref().unwrap(), &engine.custom, &chars, &mut issues);
             }
-            collect_spelling(engine.speller.as_ref().unwrap(), &engine.custom, &chars, &mut issues);
         }
         if grammar {
             if engine.harper.is_none() {

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "Margin",
-  "version": "0.1.10",
+  "version": "0.1.12",
   "identifier": "studio.margin.app",
   "build": {
     "beforeDevCommand": "pnpm dev",