diff --git a/.cargo/config.toml b/.cargo/config.toml
index 15fab5a..20dba1b 100644
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@@ -6,3 +6,11 @@ rustflags = ["-C", "target-feature=+crt-static"]
 [alias]
 # `cargo lint`: the strict check to run before committing.
 lint = "clippy --all-targets -- -D warnings"
+# `cargo linux`: build a Linux binary from any OS (needs, once:
+# `rustup target add x86_64-unknown-linux-musl`). It's fully static, so the
+# same file runs on Void (glibc or musl), Fedora and other distributions:
+# target/x86_64-unknown-linux-musl/release/skyshift
+linux = [
+    "build", "--release", "--target", "x86_64-unknown-linux-musl",
+    "--config", "target.x86_64-unknown-linux-musl.linker = 'rust-lld'",
+]