diff --git a/Cargo.lock b/Cargo.lock
index ad95de9..350f4ab 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -234,6 +234,12 @@ version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
 [[package]]
 name = "bitflags"
 version = "2.9.1"
@@ -665,6 +671,17 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
+[[package]]
+name = "errno"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f639046355ee4f37944e44f60642c6f3a7efa3cf6b78c78a0d989a8ce6c396a1"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "errno"
 version = "0.3.13"
@@ -675,6 +692,16 @@ dependencies = [
  "windows-sys 0.60.2",
 ]
 
+[[package]]
+name = "errno-dragonfly"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "fallible-iterator"
 version = "0.3.0"
@@ -1147,7 +1174,7 @@ version = "0.7.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d93587f37623a1a17d94ef2bc9ada592f5465fe7732084ab7beefabe5c77c0c4"
 dependencies = [
- "bitflags",
+ "bitflags 2.9.1",
  "cfg-if",
  "libc",
 ]
@@ -1220,6 +1247,7 @@ dependencies = [
  "local-ip-address",
  "log",
  "lz4_flex",
+ "magic",
  "nix",
  "once_cell",
  "prettytable-rs",
@@ -1271,7 +1299,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "391290121bad3d37fbddad76d8f5d1c1c314cfc646d143d7e07a3086ddff0ce3"
 dependencies = [
- "bitflags",
+ "bitflags 2.9.1",
  "libc",
 ]
 
@@ -1357,6 +1385,29 @@ dependencies = [
  "twox-hash",
 ]
 
+[[package]]
+name = "magic"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87142e3acb1f4daa62eaea96605421a534119d4777a9fb43fb2784798fd89665"
+dependencies = [
+ "bitflags 1.3.2",
+ "errno 0.2.8",
+ "libc",
+ "magic-sys",
+ "thiserror 1.0.69",
+]
+
+[[package]]
+name = "magic-sys"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eff86ae08895140d628119d407d568f3b657145ee8c265878064f717534bb3bc"
+dependencies = [
+ "libc",
+ "vcpkg",
+]
+
 [[package]]
 name = "matchit"
 version = "0.8.4"
@@ -1453,7 +1504,7 @@ version = "0.30.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "74523f3a35e05aba87a1d978330aef40f67b0304ac79c1c00b294c9830543db6"
 dependencies = [
- "bitflags",
+ "bitflags 2.9.1",
  "cfg-if",
  "cfg_aliases",
  "libc",
@@ -1725,7 +1776,7 @@ version = "0.5.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5407465600fb0548f1442edf71dd20683c6ed326200ace4b1ef0763521bb3b77"
 dependencies = [
- "bitflags",
+ "bitflags 2.9.1",
 ]
 
 [[package]]
@@ -1786,7 +1837,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b91f7eff05f748767f183df4320a63d6936e9c6107d97c9e6bdd9784f4289c94"
 dependencies = [
  "base64 0.21.7",
- "bitflags",
+ "bitflags 2.9.1",
  "serde",
  "serde_derive",
 ]
@@ -1797,7 +1848,7 @@ version = "0.37.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "165ca6e57b20e1351573e3729b958bc62f0e48025386970b6e4d29e7a7e71f3f"
 dependencies = [
- "bitflags",
+ "bitflags 2.9.1",
  "chrono",
  "fallible-iterator",
  "fallible-streaming-iterator",
@@ -1872,8 +1923,8 @@ version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "11181fbabf243db407ef8df94a6ce0b2f9a733bd8be4ad02b4eda9602296cac8"
 dependencies = [
- "bitflags",
- "errno",
+ "bitflags 2.9.1",
+ "errno 0.3.13",
  "libc",
  "linux-raw-sys",
  "windows-sys 0.60.2",
@@ -2370,7 +2421,7 @@ version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "adc82fd73de2a9722ac5da747f12383d2bfdb93591ee6c58486e0097890f05f2"
 dependencies = [
- "bitflags",
+ "bitflags 2.9.1",
  "bytes",
  "futures-core",
  "futures-util",
@@ -2924,7 +2975,7 @@ version = "0.39.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
 dependencies = [
- "bitflags",
+ "bitflags 2.9.1",
 ]
 
 [[package]]
diff --git a/src/modes/server/api/item.rs b/src/modes/server/api/item.rs
index c6a3933..f9af591 100644
--- a/src/modes/server/api/item.rs
+++ b/src/modes/server/api/item.rs
@@ -505,7 +505,7 @@ async fn get_item_raw_content(item: &db::Item, data_dir: &PathBuf, conn: &mut ru
     
     let mime_type = meta_entries
         .iter()
-        .find(|m| m.name == "file.mime")
+        .find(|m| m.name == "mime_type")
         .map(|m| m.value.clone())
         .unwrap_or_else(|| "application/octet-stream".to_string());
     
diff --git a/src/modes/server/common.rs b/src/modes/server/common.rs
index f22a804..3a32d21 100644
--- a/src/modes/server/common.rs
+++ b/src/modes/server/common.rs
@@ -89,7 +89,7 @@ pub struct ItemInfo {
     pub compression: String,
     #[schema(example = json!(["important", "work", "document"]))]
     pub tags: Vec<String>,
-    #[schema(example = json!({"file.mime": "text/plain", "file.encoding": "utf-8", "line_count": "42"}))]
+    #[schema(example = json!({"mime_type": "text/plain", "mime_encoding": "utf-8", "line_count": "42"}))]
     pub metadata: HashMap<String, String>,
 }
 
@@ -97,7 +97,7 @@ pub struct ItemInfo {
 #[schema(description = "Item information including content and metadata, with binary detection")]
 pub struct ItemContentInfo {
     #[serde(flatten)]
-    #[schema(example = json!({"file.mime": "text/plain", "file.encoding": "utf-8", "line_count": "42"}))]
+    #[schema(example = json!({"mime_type": "text/plain", "mime_encoding": "utf-8", "line_count": "42"}))]
     pub metadata: HashMap<String, String>,
     #[schema(example = "Hello, world!\nThis is the content of the file.")]
     pub content: Option<String>,