diff --git a/.github/workflows/puzzles.yaml b/.github/workflows/puzzles.yaml
index 9971148..ea303b0 100644
--- a/.github/workflows/puzzles.yaml
+++ b/.github/workflows/puzzles.yaml
@@ -11,6 +11,26 @@ on:
     - cron: '0 0 1 * *'
 
 jobs:
+  aoc-2019:
+    name: AoC 2019 — Rust
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./2019
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up environment
+        run: rustup show active-toolchain
+
+      - name: Run
+        run: make
+
+      - name: Lint
+        run: make lint
+
   aoc-2021:
     name: AoC 2021 — Python
     runs-on: ubuntu-latest
diff --git a/2019/.cargo/config.toml b/2019/.cargo/config.toml
new file mode 100644
index 0000000..d52f0a8
--- /dev/null
+++ b/2019/.cargo/config.toml
@@ -0,0 +1,2 @@
+[net]
+offline = true
diff --git a/2019/.gitignore b/2019/.gitignore
new file mode 100644
index 0000000..1e7caa9
--- /dev/null
+++ b/2019/.gitignore
@@ -0,0 +1,2 @@
+Cargo.lock
+target/
diff --git a/2019/Cargo.toml b/2019/Cargo.toml
new file mode 100644
index 0000000..7e663ce
--- /dev/null
+++ b/2019/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "aoc-2019"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/2019/Makefile b/2019/Makefile
new file mode 100644
index 0000000..075d8bc
--- /dev/null
+++ b/2019/Makefile
@@ -0,0 +1,40 @@
+MAKEFLAGS += --warn-undefined-variables
+SHELL := bash
+.SHELLFLAGS := -eu -o pipefail -c
+.DEFAULT_GOAL := all
+.DELETE_ON_ERROR:
+.SUFFIXES:
+
+CARGO ?= cargo
+PROFILE ?= release
+
+ext := .rs
+srcdir := src/bin
+srcs := $(wildcard $(srcdir)/puzzle_*$(ext))
+answers := $(subst puzzle,answer,$(patsubst %$(ext),%.txt, $(notdir $(srcs))))
+
+include $(CURDIR)/../mk-common/common.mk
+
+answer_%.txt: $(srcdir)/puzzle_%$(ext) input_%.txt
+	$(CARGO) run --profile $(PROFILE) --bin $(basename $(notdir $<)) < $(filter-out $<, $^) | tee $@
+
+.PHONY: lint
+lint: lint-code lint-format
+
+.PHONY: lint-code
+lint-code:
+	$(CARGO) clippy
+
+.PHONY: lint-format
+lint-format:
+	$(CARGO) fmt --check
+
+.PHONY: format
+format:
+	$(CARGO) clippy --fix --allow-dirty
+	$(CARGO) fmt
+
+.PHONY: distclean
+distclean: clean
+	$(CARGO) clean
+	$(RM) Cargo.lock
diff --git a/2019/src/bin/main.rs b/2019/src/bin/main.rs
new file mode 100644
index 0000000..0672e51
--- /dev/null
+++ b/2019/src/bin/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, World!");
+}