femtopb seems to work

Cargo.toml

@@ -35,6 +35,9 @@ irq = "0.2.3"
 femtopb = "0.4.5"
 serial-line-ip = "0.5.0"
 
+[build-dependencies]
+femtopb-build = "0.4.5"
+
 # cargo build/run
 [profile.dev]
 codegen-units = 1

build.rs

@@ -31,17 +31,5 @@ fn main() {
     // `memory.x` is changed.
     println!("cargo:rerun-if-changed=memory.x");
 
-    // protobuf_codegen::Codegen::new()
-    //     // Use `protoc` parser, optional.
-    //     .protoc()
-    //     // Use `protoc-bin-vendored` bundled protoc command, optional.
-    //     .protoc_path(&protoc_bin_vendored::protoc_bin_path().unwrap())
-    //     // All inputs and imports from the inputs must reside in `includes` directories.
-    //     .includes(&["src/protos"])
-    //     // Inputs must reside in some of include paths.
-    //     .input("src/protos/apple.proto")
-    //     .input("src/protos/banana.proto")
-    //     // Specify output directory relative to Cargo output directory.
-    //     .cargo_out_dir("protos")
-    //     .run_from_script();
+    femtopb_build::compile_protos(&["src/api.proto"], &["src"]).unwrap();
 }

src/api.proto

@@ -0,0 +1,7 @@
+syntax = "proto3";
+
+message SearchRequest {
+  uint32 query = 1;
+  uint32 page_number = 2;
+  uint32 results_per_page = 3;
+}