diff --git a/objdiff-cli/src/cmd/report.rs b/objdiff-cli/src/cmd/report.rs
index 9b8f191..0c7b563 100644
--- a/objdiff-cli/src/cmd/report.rs
+++ b/objdiff-cli/src/cmd/report.rs
@@ -11,7 +11,8 @@ use argp::FromArgs;
 use objdiff_core::{
     bindings::report::{
         ChangeItem, ChangeItemInfo, ChangeUnit, Changes, ChangesInput, Measures, Report,
-        ReportItem, ReportItemMetadata, ReportUnit, ReportUnitMetadata,
+        ReportCategory, ReportItem, ReportItemMetadata, ReportUnit, ReportUnitMetadata,
+        REPORT_VERSION,
     },
     config::ProjectObject,
     diff, obj,
@@ -129,7 +130,17 @@ fn generate(args: GenerateArgs) -> Result<()> {
         units = vec.into_iter().flatten().collect();
     }
     let measures = units.iter().flat_map(|u| u.measures.into_iter()).collect();
-    let report = Report { measures: Some(measures), units };
+    let mut categories = Vec::new();
+    for category in &project.progress_categories {
+        categories.push(ReportCategory {
+            id: category.id.clone(),
+            name: category.name.clone(),
+            measures: Some(Default::default()),
+        });
+    }
+    let mut report =
+        Report { measures: Some(measures), units, version: REPORT_VERSION, categories };
+    report.calculate_progress_categories();
     let duration = start.elapsed();
     info!("Report generated in {}.{:03}s", duration.as_secs(), duration.subsec_millis());
     write_output(&report, args.output.as_deref(), output_format)?;
@@ -145,7 +156,7 @@ fn report_object(
 ) -> Result<Option<ReportUnit>> {
     object.resolve_paths(project_dir, target_dir, base_dir);
     match (&object.target_path, &object.base_path) {
-        (None, Some(_)) if object.complete != Some(true) => {
+        (None, Some(_)) if !object.complete().unwrap_or(false) => {
             warn!("Skipping object without target: {}", object.name());
             return Ok(None);
         }
@@ -173,13 +184,19 @@ fn report_object(
     let result = diff::diff_objs(&config, target.as_ref(), base.as_ref(), None)?;
 
     let metadata = ReportUnitMetadata {
-        complete: object.complete,
+        complete: object.complete(),
         module_name: target
             .as_ref()
             .and_then(|o| o.split_meta.as_ref())
             .and_then(|m| m.module_name.clone()),
         module_id: target.as_ref().and_then(|o| o.split_meta.as_ref()).and_then(|m| m.module_id),
-        source_path: None, // TODO
+        source_path: object.metadata.as_ref().and_then(|m| m.source_path.clone()),
+        progress_categories: object
+            .metadata
+            .as_ref()
+            .and_then(|m| m.progress_categories.clone())
+            .unwrap_or_default(),
+        auto_generated: object.metadata.as_ref().and_then(|m| m.auto_generated),
     };
     let mut measures = Measures::default();
     let mut sections = vec![];
@@ -191,7 +208,7 @@ fn report_object(
         let section_match_percent = section_diff.match_percent.unwrap_or_else(|| {
             // Support cases where we don't have a target object,
             // assume complete means 100% match
-            if object.complete == Some(true) {
+            if object.complete().unwrap_or(false) {
                 100.0
             } else {
                 0.0
@@ -233,7 +250,7 @@ fn report_object(
             let match_percent = symbol_diff.match_percent.unwrap_or_else(|| {
                 // Support cases where we don't have a target object,
                 // assume complete means 100% match
-                if object.complete == Some(true) {
+                if object.complete().unwrap_or(false) {
                     100.0
                 } else {
                     0.0
@@ -259,6 +276,10 @@ fn report_object(
             measures.total_functions += 1;
         }
     }
+    if metadata.complete.unwrap_or(false) {
+        measures.complete_code = measures.total_code;
+        measures.complete_data = measures.total_data;
+    }
     measures.calc_fuzzy_match_percent();
     measures.calc_matched_percent();
     Ok(Some(ReportUnit {
diff --git a/objdiff-core/Cargo.toml b/objdiff-core/Cargo.toml
index 1014403..8caf4aa 100644
--- a/objdiff-core/Cargo.toml
+++ b/objdiff-core/Cargo.toml
@@ -15,7 +15,7 @@ A local diffing tool for decompilation projects.
 crate-type = ["cdylib", "rlib"]
 
 [features]
-all = ["config", "dwarf", "mips", "ppc", "x86", "arm"]
+all = ["config", "dwarf", "mips", "ppc", "x86", "arm", "bindings"]
 any-arch = [] # Implicit, used to check if any arch is enabled
 config = ["globset", "semver", "serde_json", "serde_yaml"]
 dwarf = ["gimli"]
@@ -23,7 +23,8 @@ mips = ["any-arch", "rabbitizer"]
 ppc = ["any-arch", "cwdemangle", "cwextab", "ppc750cl"]
 x86 = ["any-arch", "cpp_demangle", "iced-x86", "msvc-demangler"]
 arm = ["any-arch", "cpp_demangle", "unarm", "arm-attr"]
-wasm = ["serde_json", "console_error_panic_hook", "console_log"]
+bindings = ["serde_json", "prost", "pbjson"]
+wasm = ["bindings", "console_error_panic_hook", "console_log"]
 
 [dependencies]
 anyhow = "1.0.82"
@@ -34,8 +35,8 @@ log = "0.4.21"
 memmap2 = "0.9.4"
 num-traits = "0.2.18"
 object = { version = "0.35.0", features = ["read_core", "std", "elf", "pe"], default-features = false }
-pbjson = "0.7.0"
-prost = "0.13.1"
+pbjson = { version = "0.7.0", optional = true }
+prost = { version = "0.13.1", optional = true }
 serde = { version = "1", features = ["derive"] }
 similar = { version = "2.5.0", default-features = false }
 strum = { version = "0.26.2", features = ["derive"] }
diff --git a/objdiff-core/protos/proto_descriptor.bin b/objdiff-core/protos/proto_descriptor.bin
index 46866c0..4551eea 100644
Binary files a/objdiff-core/protos/proto_descriptor.bin and b/objdiff-core/protos/proto_descriptor.bin differ
diff --git a/objdiff-core/protos/report.proto b/objdiff-core/protos/report.proto
index ebc0901..3a4bbe7 100644
--- a/objdiff-core/protos/report.proto
+++ b/objdiff-core/protos/report.proto
@@ -24,6 +24,14 @@ message Measures {
   uint32 matched_functions = 9;
   // Fully matched functions percent
   float matched_functions_percent = 10;
+  // Completed (or "linked") code size in bytes
+  uint64 complete_code = 11;
+  // Completed (or "linked") code percent
+  float complete_code_percent = 12;
+  // Completed (or "linked") data size in bytes
+  uint64 complete_data = 13;
+  // Completed (or "linked") data percent
+  float complete_data_percent = 14;
 }
 
 // Project progress report
@@ -32,6 +40,19 @@ message Report {
   Measures measures = 1;
   // Units within this report
   repeated ReportUnit units = 2;
+  // Report version
+  uint32 version = 3;
+  // Progress categories
+  repeated ReportCategory categories = 4;
+}
+
+message ReportCategory {
+  // The ID of the category
+  string id = 1;
+  // The name of the category
+  string name = 2;
+  // Progress info for this category
+  Measures measures = 3;
 }
 
 // A unit of the report (usually a translation unit)
@@ -58,6 +79,10 @@ message ReportUnitMetadata {
   optional uint32 module_id = 3;
   // The path to the source file of this unit
   optional string source_path = 4;
+  // Progress categories for this unit
+  repeated string progress_categories = 5;
+  // Whether this unit is automatically generated (not user-provided)
+  optional bool auto_generated = 6;
 }
 
 // A section or function within a unit
diff --git a/objdiff-core/src/bindings/mod.rs b/objdiff-core/src/bindings/mod.rs
index 3eea4e2..44e979e 100644
--- a/objdiff-core/src/bindings/mod.rs
+++ b/objdiff-core/src/bindings/mod.rs
@@ -1,3 +1,4 @@
+#[cfg(feature = "any-arch")]
 pub mod diff;
 pub mod report;
 #[cfg(feature = "wasm")]
diff --git a/objdiff-core/src/bindings/report.rs b/objdiff-core/src/bindings/report.rs
index 8b4488b..94557c7 100644
--- a/objdiff-core/src/bindings/report.rs
+++ b/objdiff-core/src/bindings/report.rs
@@ -1,3 +1,5 @@
+use std::ops::AddAssign;
+
 use anyhow::{bail, Result};
 use prost::Message;
 use serde_json::error::Category;
@@ -6,18 +8,21 @@ use serde_json::error::Category;
 include!(concat!(env!("OUT_DIR"), "/objdiff.report.rs"));
 include!(concat!(env!("OUT_DIR"), "/objdiff.report.serde.rs"));
 
+pub const REPORT_VERSION: u32 = 1;
+
 impl Report {
     pub fn parse(data: &[u8]) -> Result<Self> {
         if data.is_empty() {
             bail!(std::io::Error::from(std::io::ErrorKind::UnexpectedEof));
         }
-        if data[0] == b'{' {
+        let report = if data[0] == b'{' {
             // Load as JSON
-            Self::from_json(data).map_err(anyhow::Error::new)
+            Self::from_json(data)?
         } else {
             // Load as binary protobuf
-            Self::decode(data).map_err(anyhow::Error::new)
-        }
+            Self::decode(data)?
+        };
+        Ok(report)
     }
 
     fn from_json(bytes: &[u8]) -> Result<Self, serde_json::Error> {
@@ -37,6 +42,81 @@ impl Report {
             }
         }
     }
+
+    pub fn migrate(&mut self) -> Result<()> {
+        if self.version == 0 {
+            self.migrate_v0()?;
+        }
+        if self.version != REPORT_VERSION {
+            bail!("Unsupported report version: {}", self.version);
+        }
+        Ok(())
+    }
+
+    fn migrate_v0(&mut self) -> Result<()> {
+        let Some(measures) = &mut self.measures else {
+            bail!("Missing measures in report");
+        };
+        for unit in &mut self.units {
+            let Some(unit_measures) = &mut unit.measures else {
+                bail!("Missing measures in report unit");
+            };
+            let Some(metadata) = &mut unit.metadata else {
+                bail!("Missing metadata in report unit");
+            };
+            if metadata.module_name.is_some() || metadata.module_id.is_some() {
+                metadata.progress_categories = vec!["modules".to_string()];
+            } else {
+                metadata.progress_categories = vec!["dol".to_string()];
+            }
+            if metadata.complete.unwrap_or(false) {
+                unit_measures.complete_code = unit_measures.total_code;
+                unit_measures.complete_data = unit_measures.total_data;
+                unit_measures.complete_code_percent = 100.0;
+                unit_measures.complete_data_percent = 100.0;
+            } else {
+                unit_measures.complete_code = 0;
+                unit_measures.complete_data = 0;
+                unit_measures.complete_code_percent = 0.0;
+                unit_measures.complete_data_percent = 0.0;
+            }
+            measures.complete_code += unit_measures.complete_code;
+            measures.complete_data += unit_measures.complete_data;
+        }
+        measures.calc_matched_percent();
+        self.version = 1;
+        Ok(())
+    }
+
+    pub fn calculate_progress_categories(&mut self) {
+        for unit in &self.units {
+            let Some(metadata) = unit.metadata.as_ref() else {
+                continue;
+            };
+            let Some(measures) = unit.measures.as_ref() else {
+                continue;
+            };
+            for category_id in &metadata.progress_categories {
+                let category = match self.categories.iter_mut().find(|c| &c.id == category_id) {
+                    Some(category) => category,
+                    None => {
+                        self.categories.push(ReportCategory {
+                            id: category_id.clone(),
+                            name: String::new(),
+                            measures: Some(Default::default()),
+                        });
+                        self.categories.last_mut().unwrap()
+                    }
+                };
+                *category.measures.get_or_insert_with(Default::default) += *measures;
+            }
+        }
+        for category in &mut self.categories {
+            let measures = category.measures.get_or_insert_with(Default::default);
+            measures.calc_fuzzy_match_percent();
+            measures.calc_matched_percent();
+        }
+    }
 }
 
 impl Measures {
@@ -66,6 +146,16 @@ impl Measures {
         } else {
             self.matched_functions as f32 / self.total_functions as f32 * 100.0
         };
+        self.complete_code_percent = if self.total_code == 0 {
+            100.0
+        } else {
+            self.complete_code as f32 / self.total_code as f32 * 100.0
+        };
+        self.complete_data_percent = if self.total_data == 0 {
+            100.0
+        } else {
+            self.complete_data as f32 / self.total_data as f32 * 100.0
+        };
     }
 }
 
@@ -75,19 +165,27 @@ impl From<&ReportItem> for ChangeItemInfo {
     }
 }
 
+impl AddAssign for Measures {
+    fn add_assign(&mut self, other: Self) {
+        self.fuzzy_match_percent += other.fuzzy_match_percent * other.total_code as f32;
+        self.total_code += other.total_code;
+        self.matched_code += other.matched_code;
+        self.total_data += other.total_data;
+        self.matched_data += other.matched_data;
+        self.total_functions += other.total_functions;
+        self.matched_functions += other.matched_functions;
+        self.complete_code += other.complete_code;
+        self.complete_data += other.complete_data;
+    }
+}
+
 /// Allows [collect](Iterator::collect) to be used on an iterator of [Measures].
 impl FromIterator<Measures> for Measures {
     fn from_iter<T>(iter: T) -> Self
     where T: IntoIterator<Item = Measures> {
         let mut measures = Measures::default();
         for other in iter {
-            measures.fuzzy_match_percent += other.fuzzy_match_percent * other.total_code as f32;
-            measures.total_code += other.total_code;
-            measures.matched_code += other.matched_code;
-            measures.total_data += other.total_data;
-            measures.matched_data += other.matched_data;
-            measures.total_functions += other.total_functions;
-            measures.matched_functions += other.matched_functions;
+            measures += other;
         }
         measures.calc_fuzzy_match_percent();
         measures.calc_matched_percent();
@@ -125,8 +223,10 @@ impl From<LegacyReport> for Report {
                 total_functions: value.total_functions,
                 matched_functions: value.matched_functions,
                 matched_functions_percent: value.matched_functions_percent,
+                ..Default::default()
             }),
-            units: value.units.into_iter().map(ReportUnit::from).collect(),
+            units: value.units.into_iter().map(ReportUnit::from).collect::<Vec<_>>(),
+            ..Default::default()
         }
     }
 }
diff --git a/objdiff-core/src/config/mod.rs b/objdiff-core/src/config/mod.rs
index f1fd1fb..6a89986 100644
--- a/objdiff-core/src/config/mod.rs
+++ b/objdiff-core/src/config/mod.rs
@@ -31,6 +31,8 @@ pub struct ProjectConfig {
     pub watch_patterns: Option<Vec<Glob>>,
     #[serde(default, alias = "units")]
     pub objects: Vec<ProjectObject>,
+    #[serde(default)]
+    pub progress_categories: Vec<ProjectProgressCategory>,
 }
 
 #[derive(Default, Clone, serde::Deserialize)]
@@ -44,11 +46,37 @@ pub struct ProjectObject {
     #[serde(default)]
     pub base_path: Option<PathBuf>,
     #[serde(default)]
+    #[deprecated(note = "Use metadata.reverse_fn_order")]
     pub reverse_fn_order: Option<bool>,
     #[serde(default)]
+    #[deprecated(note = "Use metadata.complete")]
     pub complete: Option<bool>,
     #[serde(default)]
     pub scratch: Option<ScratchConfig>,
+    #[serde(default)]
+    pub metadata: Option<ProjectObjectMetadata>,
+}
+
+#[derive(Default, Clone, serde::Deserialize)]
+pub struct ProjectObjectMetadata {
+    #[serde(default)]
+    pub complete: Option<bool>,
+    #[serde(default)]
+    pub reverse_fn_order: Option<bool>,
+    #[serde(default)]
+    pub source_path: Option<String>,
+    #[serde(default)]
+    pub progress_categories: Option<Vec<String>>,
+    #[serde(default)]
+    pub auto_generated: Option<bool>,
+}
+
+#[derive(Default, Clone, serde::Deserialize)]
+pub struct ProjectProgressCategory {
+    #[serde(default)]
+    pub id: String,
+    #[serde(default)]
+    pub name: String,
 }
 
 impl ProjectObject {
@@ -82,6 +110,16 @@ impl ProjectObject {
             self.base_path = Some(project_dir.join(path));
         }
     }
+
+    pub fn complete(&self) -> Option<bool> {
+        #[allow(deprecated)]
+        self.metadata.as_ref().and_then(|m| m.complete).or(self.complete)
+    }
+
+    pub fn reverse_fn_order(&self) -> Option<bool> {
+        #[allow(deprecated)]
+        self.metadata.as_ref().and_then(|m| m.reverse_fn_order).or(self.reverse_fn_order)
+    }
 }
 
 #[derive(Default, Clone, Eq, PartialEq, serde::Deserialize, serde::Serialize)]
diff --git a/objdiff-core/src/lib.rs b/objdiff-core/src/lib.rs
index 48f1e72..02df5a4 100644
--- a/objdiff-core/src/lib.rs
+++ b/objdiff-core/src/lib.rs
@@ -1,10 +1,11 @@
+#[cfg(feature = "any-arch")]
 pub mod arch;
+#[cfg(feature = "bindings")]
 pub mod bindings;
 #[cfg(feature = "config")]
 pub mod config;
+#[cfg(feature = "any-arch")]
 pub mod diff;
+#[cfg(feature = "any-arch")]
 pub mod obj;
 pub mod util;
-
-#[cfg(not(feature = "any-arch"))]
-compile_error!("At least one architecture feature must be enabled.");
diff --git a/objdiff-core/src/util.rs b/objdiff-core/src/util.rs
index 5f99e94..e46d136 100644
--- a/objdiff-core/src/util.rs
+++ b/objdiff-core/src/util.rs
@@ -9,7 +9,7 @@ use num_traits::PrimInt;
 use object::{Endian, Object};
 
 // https://stackoverflow.com/questions/44711012/how-do-i-format-a-signed-integer-to-a-sign-aware-hexadecimal-representation
-pub(crate) struct ReallySigned<N: PrimInt>(pub(crate) N);
+pub struct ReallySigned<N: PrimInt>(pub(crate) N);
 
 impl<N: PrimInt> LowerHex for ReallySigned<N> {
     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
diff --git a/objdiff-gui/src/views/config.rs b/objdiff-gui/src/views/config.rs
index f432f5a..812595c 100644
--- a/objdiff-gui/src/views/config.rs
+++ b/objdiff-gui/src/views/config.rs
@@ -365,7 +365,7 @@ fn display_object(
     let selected = matches!(selected_obj, Some(obj) if obj.name == object_name);
     let color = if selected {
         appearance.emphasized_text_color
-    } else if let Some(complete) = object.complete {
+    } else if let Some(complete) = object.complete() {
         if complete {
             appearance.insert_color
         } else {
@@ -392,8 +392,8 @@ fn display_object(
             name: object_name.to_string(),
             target_path: object.target_path.clone(),
             base_path: object.base_path.clone(),
-            reverse_fn_order: object.reverse_fn_order,
-            complete: object.complete,
+            reverse_fn_order: object.reverse_fn_order(),
+            complete: object.complete(),
             scratch: object.scratch.clone(),
         });
     }
@@ -470,7 +470,7 @@ fn filter_node(
             if (search.is_empty() || name.to_ascii_lowercase().contains(search))
                 && (!filter_diffable
                     || (object.base_path.is_some() && object.target_path.is_some()))
-                && (!filter_incomplete || matches!(object.complete, None | Some(false)))
+                && (!filter_incomplete || matches!(object.complete(), None | Some(false)))
             {
                 Some(node.clone())
             } else {