diff --git a/lib/core/src/StaticBuffer.ri b/lib/core/src/StaticBuffer.c.ri
similarity index 100%
rename from lib/core/src/StaticBuffer.ri
rename to lib/core/src/StaticBuffer.c.ri
diff --git a/lib/core/src/StringBuilder.ri b/lib/core/src/StringBuilder.c.ri
similarity index 100%
rename from lib/core/src/StringBuilder.ri
rename to lib/core/src/StringBuilder.c.ri
diff --git a/lib/core/src/StringFormatter.ri b/lib/core/src/StringFormatter.c.ri
similarity index 100%
rename from lib/core/src/StringFormatter.ri
rename to lib/core/src/StringFormatter.c.ri
diff --git a/lib/core/src/TokenIterator.ri b/lib/core/src/TokenIterator.c.ri
similarity index 100%
rename from lib/core/src/TokenIterator.ri
rename to lib/core/src/TokenIterator.c.ri
diff --git a/lib/core/src/Vector.ri b/lib/core/src/Vector.c.ri
similarity index 100%
rename from lib/core/src/Vector.ri
rename to lib/core/src/Vector.c.ri
diff --git a/lib/core/src/array.ri b/lib/core/src/array.c.ri
similarity index 100%
rename from lib/core/src/array.ri
rename to lib/core/src/array.c.ri
diff --git a/lib/core/src/backtrace.ri b/lib/core/src/backtrace.c.ri
similarity index 100%
rename from lib/core/src/backtrace.ri
rename to lib/core/src/backtrace.c.ri
diff --git a/lib/core/src/bool.ri b/lib/core/src/bool.c.ri
similarity index 100%
rename from lib/core/src/bool.ri
rename to lib/core/src/bool.c.ri
diff --git a/lib/core/src/console.ri b/lib/core/src/console.c.ri
similarity index 100%
rename from lib/core/src/console.ri
rename to lib/core/src/console.c.ri
diff --git a/lib/core/src/demangle.ri b/lib/core/src/demangle.c.ri
similarity index 100%
rename from lib/core/src/demangle.ri
rename to lib/core/src/demangle.c.ri
diff --git a/lib/core/src/entry_point.ri b/lib/core/src/entry_point.c.ri
similarity index 100%
rename from lib/core/src/entry_point.ri
rename to lib/core/src/entry_point.c.ri
diff --git a/lib/core/src/errors.ri b/lib/core/src/errors.c.ri
similarity index 100%
rename from lib/core/src/errors.ri
rename to lib/core/src/errors.c.ri
diff --git a/lib/core/src/float.ri b/lib/core/src/float.c.ri
similarity index 100%
rename from lib/core/src/float.ri
rename to lib/core/src/float.c.ri
diff --git a/lib/core/src/int.ri b/lib/core/src/int.c.ri
similarity index 100%
rename from lib/core/src/int.ri
rename to lib/core/src/int.c.ri
diff --git a/lib/core/src/lib.ri b/lib/core/src/lib.c.ri
similarity index 100%
rename from lib/core/src/lib.ri
rename to lib/core/src/lib.c.ri
diff --git a/lib/core/src/mem.ri b/lib/core/src/mem.c.ri
similarity index 100%
rename from lib/core/src/mem.ri
rename to lib/core/src/mem.c.ri
diff --git a/lib/core/src/process.ri b/lib/core/src/process.c.ri
similarity index 100%
rename from lib/core/src/process.ri
rename to lib/core/src/process.c.ri
diff --git a/lib/core/src/ptr.ri b/lib/core/src/ptr.c.ri
similarity index 100%
rename from lib/core/src/ptr.ri
rename to lib/core/src/ptr.c.ri
diff --git a/lib/core/src/rune.ri b/lib/core/src/rune.c.ri
similarity index 100%
rename from lib/core/src/rune.ri
rename to lib/core/src/rune.c.ri
diff --git a/lib/core/src/signals.ri b/lib/core/src/signals.c.ri
similarity index 100%
rename from lib/core/src/signals.ri
rename to lib/core/src/signals.c.ri
diff --git a/lib/core/src/string.ri b/lib/core/src/string.c.ri
similarity index 100%
rename from lib/core/src/string.ri
rename to lib/core/src/string.c.ri
diff --git a/lib/core/src/uint.ri b/lib/core/src/uint.c.ri
similarity index 100%
rename from lib/core/src/uint.ri
rename to lib/core/src/uint.c.ri
diff --git a/lib/core/src/wyhash.ri b/lib/core/src/wyhash.c.ri
similarity index 100%
rename from lib/core/src/wyhash.ri
rename to lib/core/src/wyhash.c.ri
diff --git a/lib/rivet/src/ast/Table.ri b/lib/rivet/src/ast/Table.ri
index ec85fa948..0dbae70b0 100644
--- a/lib/rivet/src/ast/Table.ri
+++ b/lib/rivet/src/ast/Table.ri
@@ -387,9 +387,7 @@ public struct Table {
         mut new_inputs := @vec(string, inputs.len);
         for input in inputs {
             basename_input := Path.basename(input);
-            if basename_input == "project.ri" {
-                continue; // Skip `project.ri` file, loaded after
-            } else if basename_input.count(".") == 1 {
+            if basename_input.count(".") == 1 {
                 new_inputs.push(input);
                 continue;
             }
@@ -402,32 +400,35 @@ public struct Table {
                 }
                 already_exts.push(ext);
                 if ext.starts_with("d_") or ext.starts_with("notd_") {
-                    should_compile = should_compile and if ext.starts_with("d_") {
+                    should_compile = if ext.starts_with("d_") {
                         ext[2..] in self.prefs.flags
                     } else {
                         ext[2..] !in self.prefs.flags
                     };
                 } else if os := sys.OS.from_string(ext) {
-                    should_compile = should_compile and self.prefs.target_os == os;
+                    should_compile = self.prefs.target_os == os;
                 } else if arch := sys.Arch.from_string(ext) {
-                    should_compile = should_compile and self.prefs.target_arch == arch;
+                    should_compile = self.prefs.target_arch == arch;
                 } else if ext in ["x32", "x64"] {
-                    should_compile = should_compile and if ext == "x32" {
+                    should_compile = if ext == "x32" {
                         !self.prefs.target_is_64bit
                     } else {
                         self.prefs.target_is_64bit
                     };
                 } else if ext in ["little_endian", "big_endian"] {
-                    should_compile = should_compile and if ext == "little_endian" {
+                    should_compile = if ext == "little_endian" {
                         self.prefs.target_is_little_endian
                     } else {
                         !self.prefs.target_is_little_endian
                     };
                 } else if backend := prefs.Backend.from_string(ext) {
-                    should_compile = should_compile and backend == self.prefs.target_backend;
+                    should_compile = backend == self.prefs.target_backend;
                 } else {
                     utils.error("{}: unknown special extension `{}`", input, ext);
                 }
+                if !should_compile {
+                    break;
+                }
             }
             if should_compile {
                 new_inputs.push(input);
diff --git a/rivetc/src/__init__.py b/rivetc/src/__init__.py
index b4c46eb3e..25d7deb4c 100644
--- a/rivetc/src/__init__.py
+++ b/rivetc/src/__init__.py
@@ -263,30 +263,30 @@ def filter_files(self, inputs):
                 already_exts.append(ext)
                 if ext.startswith("d_") or ext.startswith("notd_"):
                     if ext.startswith("d_"):
-                        should_compile = should_compile and ext[
-                            2:] in self.prefs.flags
+                        should_compile = ext[2:] in self.prefs.flags
                     else:
-                        should_compile = should_compile and ext[
-                            5:] not in self.prefs.flags
+                        should_compile = ext[5:] not in self.prefs.flags
                 elif osf := prefs.OS.from_string(ext):
-                    should_compile = should_compile and self.prefs.target_os == osf
+                    should_compile = self.prefs.target_os == osf
                 elif arch := prefs.Arch.from_string(ext):
-                    should_compile = should_compile and self.prefs.target_arch == arch
+                    should_compile = self.prefs.target_arch == arch
                 elif ext in ("x32", "x64"):
                     if ext == "x32":
-                        should_compile = should_compile and self.prefs.target_bits == Bits.X32
+                        should_compile = self.prefs.target_bits == Bits.X32
                     else:
-                        should_compile = should_compile and self.prefs.target_bits == Bits.X64
+                        should_compile = self.prefs.target_bits == Bits.X64
                 elif ext in ("little_endian", "big_endian"):
                     if ext == "little_endian":
-                        should_compile = should_compile and self.prefs.target_endian == Endian.Little
+                        should_compile = self.prefs.target_endian == Endian.Little
                     else:
-                        should_compile = should_compile and self.prefs.target_endian == Endian.Big
-                elif b := Backend.from_string(ext): # backends
-                    should_compile = should_compile and self.prefs.target_backend == b
+                        should_compile = self.prefs.target_endian == Endian.Big
+                elif b := prefs.Backend.from_string(ext): # backends
+                    should_compile = self.prefs.target_backend == b
                 else:
                     error(f"{input}: unknown special extension `{ext}`")
                     break
+                if not should_compile:
+                    break
             if should_compile:
                 new_inputs.append(input)
         return new_inputs