Switch opencode image to build from source

opencode/Dockerfile

@@ -1,8 +1,26 @@
+ARG BUN_VERSION
+FROM oven/bun:${BUN_VERSION}-alpine AS build
+	
+ARG OPENCODE_VERSION
+RUN apk update
+RUN --mount=type=cache,target=/var/cache/apk apk update
+RUN --mount=type=cache,target=/var/cache/apk apk add python3 make g++ npm zip git
+RUN adduser -D -h /home/builder -u 1126 builder
+USER builder
+WORKDIR /home/builder
+ADD --chown=builder:builder --keep-git-dir=true git@github.com:anomalyco/opencode.git#v${OPENCODE_VERSION} opencode
+WORKDIR /home/builder/opencode
+
+RUN --mount=type=cache,target=/home/builder/.bun/install/cache,uid=1126 bun install
+ADD --chown=builder:builder ./build.ts ./packages/opencode/script/build.ts
+RUN --mount=type=cache,target=/home/builder/.bun/install/cache,uid=1126 ./packages/opencode/script/build.ts
+
+
+
+
 FROM archlinux:latest AS release
 ARG OPENCODE_VERSION
-
 COPY mirrorlist /etc/pacman.d/mirrolist
-
 RUN pacman-key --init
 #RUN pacman-key --refresh-keys
 
@@ -27,7 +45,7 @@ USER opencode
 RUN pipx install pyright
 RUN pipx install pip-tools
 USER root
-ADD https://github.com/anomalyco/opencode/releases/download/v${OPENCODE_VERSION}/opencode-linux-x64.tar.gz ./opencode.tgz
+COPY --from=build --chown=root:root /home/builder/opencode/packages/opencode/dist/opencode-linux-x64/bin/opencode /usr/bin/opencode
 RUN tar -xvf ./opencode.tgz -C /usr/bin
 RUN rm opencode.tgz
 ADD --chown=opencode:opencode ./opencode.json /etc/opencode/opencode.json