cargo new project_name          # Binary
cargo new --lib project_name    # Library

src/
├── lib.rs / main.rs
├── module/
│   ├── mod.rs
│   └── submodule.rs
├── error.rs                    # Error types
├── config.rs                   # Configuration
tests/                          # Integration tests
examples/                       # Runnable examples
benches/                        # Benchmarks

tokio = { version = "1", features = ["full"] }

serde = { version = "1", features = ["derive"] }
serde_json = "1"

thiserror = "1"      # Libraries
anyhow = "1"         # Applications

sqlx = { version = "0.7", features = ["runtime-tokio", "postgres", "native-tls"] }

axum = "0.7"
reqwest = { version = "0.11", features = ["json"] }

clap = { version = "4", features = ["derive"] }

tracing = "0.1"
tracing-subscriber = { version = "0.3", features = ["env-filter"] }

dotenvy = "0.15"     # Environment variables
num_cpus = "1"       # CPU detection
parking_lot = "0.12" # Fast locks
bytes = "1"          # Zero-copy buffers

[package]
name = "my-service"
version = "0.1.0"
edition = "2021"
rust-version = "1.70"

[dependencies]
tokio = { version = "1", features = ["full"] }
serde = { version = "1", features = ["derive"] }
serde_json = "1"
thiserror = "1"
tracing = "0.1"
tracing-subscriber = { version = "0.3", features = ["env-filter"] }
dotenvy = "0.15"

[dev-dependencies]
tokio-test = "0.4"

[profile.release]
opt-level = 3
lto = true
codegen-units = 1
strip = true
panic = 'abort'

[lints.rust]
unsafe_code = "forbid"

[lints.clippy]
all = "warn"
pedantic = "warn"
unwrap_used = "deny"
expect_used = "deny"