feat: Initialization from examples

Rust code taken from matrix-rust-sdk's 'getting started' example. See Permalink [0]

Other boilerplate code taken from my other project `cmprss`.

[0] https://github.com/matrix-org/matrix-rust-sdk/tree/b2c96b72b02ac63741678895dbeda2eda4237319/examples/getting_started

.github/workflows/nix.yml

@@ -0,0 +1,26 @@
+name: Nix
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@main
+      - name: Nix Cache
+        uses: DeterminateSystems/magic-nix-cache-action@main
+
+      - name: Check
+        # Run 1 at a time and print all the log files
+        run: nix flake check --max-jobs 1 -L
+
+      - name: Build
+        run: nix build

.github/workflows/rust.yml

@@ -0,0 +1,39 @@
+name: Rust
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  # Build/Test/Check everything Rust
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy, rustfmt
+
+      - name: Rust Cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: Build
+        run: cargo build
+
+      - name: Test
+        run: cargo test
+
+      - name: Format
+        run: cargo fmt -- --check
+
+      - name: Clippy
+        run: cargo clippy -- -D warnings

.gitignore

@@ -0,0 +1,18 @@
+# Generated by Cargo
+# will have compiled files and executables
+/target
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# Nix build files
+/result
+
+# direnv files
+/.direnv
+
+# task files for tracking already run commands
+/.task
+
+# Local cache files for testing
+/.cache