Merge branch 'main' into feat/esp-hal-unification

Cargo.toml

@@ -5,9 +5,6 @@ authors = ["{{ authors }}"]
 edition = "2021"
 license = "MIT OR Apache-2.0"
 
-[profile.release]
-debug = true
-
 [dependencies]
 esp-backtrace = { version = "0.11.0", features = [
     "{{ mcu }}",
@@ -47,3 +44,17 @@ smoltcp = { version = "0.10.0", default-features = false, features = [
     "socket-udp",
 ] }
 {% endif -%}
+
+[profile.dev]
+# Rust debug is too slow. 
+# For debug builds always builds with some optimization
+opt-level = "s"
+
+[profile.release]
+codegen-units = 1 # LLVM can perform better optimizations using a single thread
+debug = 2
+debug-assertions = false
+incremental = false
+lto = 'fat'
+opt-level = 's'
+overflow-checks = false