Major refactor

Dockerfile

@@ -1,15 +1,15 @@
+# syntax=docker/dockerfile:1
+
 # =========
 #  Builder
 # =========
-FROM rust:bookworm AS builder
-WORKDIR /builder
-
-COPY migrations ./migrations
-COPY src ./src
-COPY Cargo.toml ./
-
-RUN apt-get update && apt-get install -y cmake
-RUN cargo build --release
+FROM rust:1.94-slim-bookworm AS builder
+COPY . .
+RUN --mount=type=cache,target=/usr/local/cargo/registry,sharing=locked \
+    --mount=type=cache,target=/usr/local/cargo/git,sharing=locked \
+    --mount=type=cache,target=/target,sharing=locked \
+    cargo build --release --bin siren && \
+    cp /target/release/siren /siren
 
 # ==========
 #  Packages
@@ -40,7 +40,7 @@ FROM debian:bookworm-slim AS runtime
 WORKDIR /siren
 USER root
 
-COPY --from=builder /builder/target/release/siren /usr/local/bin/siren
+COPY --from=builder /siren /usr/local/bin/siren
 COPY --from=packages /packages /usr/bin
 
 RUN apt-get update && apt-get install -y libc6 libc6-dev libopus-dev libpq5 libpq-dev python3-pip ffmpeg