diff --git a/README.md b/README.md
index e4ff33b..d448a0b 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,22 @@
 This is for:
 * The [questdb-confstr](./questdb-confstr) crate
 * and its bindings for C [questdb-confstr-ffi](./questdb-confstr-ffi)
+
+## Dev notes
+
+To build and test:
+
+```
+cargo clean
+cargo build
+cargo test
+cd questdb-confstr-ffi/cpp_test
+./compile
+./run
+```
+
+In addition, before pushing a PR, please run:
+```
+cargo fmt --all
+cargo clippy --all-targets -- -D warnings
+```
\ No newline at end of file
diff --git a/questdb-confstr-ffi/cpp_test/test.cpp b/questdb-confstr-ffi/cpp_test/test.cpp
index decca7a..fd4188c 100644
--- a/questdb-confstr-ffi/cpp_test/test.cpp
+++ b/questdb-confstr-ffi/cpp_test/test.cpp
@@ -30,6 +30,8 @@
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
 #include "doctest.hpp"
 
+using namespace questdb::conf_str;
+
 TEST_CASE("basic no params")
 {
     const auto c1 = conf_str::parse("http");
diff --git a/questdb-confstr-ffi/include/questdb/conf_str.hpp b/questdb-confstr-ffi/include/questdb/conf_str.hpp
index fc3bca1..cfb9452 100644
--- a/questdb-confstr-ffi/include/questdb/conf_str.hpp
+++ b/questdb-confstr-ffi/include/questdb/conf_str.hpp
@@ -5,6 +5,8 @@
 #include <optional>
 #include <string_view>
 
+namespace questdb::conf_str
+{
 
 class parse_err
 {
@@ -157,3 +159,5 @@ class conf_str
     conf_str(::questdb_conf_str* impl) : _impl(impl) {}
     ::questdb_conf_str* _impl;
 };
+
+}
diff --git a/questdb-confstr/tests/tests.rs b/questdb-confstr/tests/tests.rs
index c304d9f..951b223 100644
--- a/questdb-confstr/tests/tests.rs
+++ b/questdb-confstr/tests/tests.rs
@@ -22,8 +22,8 @@
  *
  ******************************************************************************/
 
-use std::collections::HashMap;
 use questdb_confstr::{parse_conf_str, ErrorKind, ParsingError};
+use std::collections::HashMap;
 
 #[test]
 fn empty() -> Result<(), ParsingError> {