build: dendritic flake, devShell and crate skeleton

Cargo.toml

@@ -0,0 +1,32 @@
+[package]
+name = "valw"
+version = "0.1.0"
+edition = "2024"
+description = "macOS-style screenshots for niri"
+license = "MIT"
+
+[dependencies]
+anyhow = "1.0.104"
+chrono = "0.4.45"
+clap = { version = "4.6.7", features = ["derive"] }
+image = { version = "0.25.10", default-features = false, features = ["png"] }
+libc = "0.2.189"
+niri-ipc = "=26.4.0"
+rustix = { version = "1.1.5", features = ["event", "fs", "pipe", "process", "stdio"] }
+serde = { version = "1.0.229", features = ["derive"] }
+serde_ignored = "0.1.14"
+smithay-client-toolkit = "0.21.1"
+toml = "1.1.6"
+tracing = "0.1.44"
+tracing-subscriber = { version = "0.3.23", features = ["env-filter"] }
+wayland-client = "0.31.15"
+wayland-protocols = { version = "0.32.13", features = ["client", "staging"] }
+wayland-protocols-wlr = { version = "0.3.12", features = ["client"] }
+wl-clipboard-rs = "0.9.4"
+
+[dev-dependencies]
+tempfile = "3.27.0"
+
+# Image encoding is painfully slow unoptimised; keep dev builds usable.
+[profile.dev.package."*"]
+opt-level = 3