attempt build from source of opencode

opencode/from-source.dockerfile

@@ -0,0 +1,28 @@
+FROM oven/bun:1.3.14-alpine AS builder
+	
+#FROM node:25-alpine AS builder
+ARG VERSION
+ENTRYPOINT sh
+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
+RUN adduser -D -h /home/builder builder
+USER builder
+WORKDIR /home/builder
+ADD --chown=builder:builder git@github.com:anomalyco/opencode.git#v${VERSION} opencode
+WORKDIR /home/builder/opencode
+RUN bun install
+#RUN --mount=type=cache,target=/home/builder/.bun/install/cache bun install
+WORKDIR /home/builder/opencode/packages/opencode
+ENV OPENCODE_CHANNEL=latest
+ENV OPENCODE_VERSION=${VERSION}
+ENV OPENCODE_RELEASE=${VERSION}
+#bun run ./script/build.ts --single
+RUN --mount=type=cache,target=/home/builder/.bun/install/cache ./packages/opencode/script/build.ts
+RUN --mount=type=cache,target=/home/builder/.bun/install/cache ./packages/cli/script/build.ts
+
+RUN rm ./opencode.tgz
+	
+RUN adduser -D -h /var/lib/opencode opencode
+USER opencode
+WORKDIR /var/lib/opencode