diff --git a/opencode/Dockerfile b/opencode/Dockerfile
index 9f21035..b2ad605 100644
--- a/opencode/Dockerfile
+++ b/opencode/Dockerfile
@@ -1,7 +1,7 @@
 ARG ALPINE_VERSION=latest
 FROM --platform=$BUILDPLATFORM alpine:${ALPINE_VERSION} AS base
 RUN --mount=type=cache,target=/var/cache/apk apk update
-RUN --mount=type=cache,target=/var/cache/apk apk add rust-analyzer openjdk25-jdk jdtls pipx ripgrep git
+RUN --mount=type=cache,target=/var/cache/apk apk add rust-analyzer openjdk25-jdk jdtls pipx ripgrep git helix helix-tree-sitter-vendor
 RUN adduser -D -h /var/lib/opencode opencode
 RUN mkdir /workspace
 RUN chown opencode:opencode /workspace
@@ -24,6 +24,7 @@ ADD --chown=opencode:opencode ./opencode.json /etc/opencode/opencode.json
 RUN mkdir -p /usr/lib/opencode/addons
 ADD --chmod=644 https://repo1.maven.org/maven2/org/projectlombok/lombok/1.18.44/lombok-1.18.44.jar /usr/lib/opencode/addons/lombok.jar
 ENV OPENCODE_CONFIG=/etc/opencode/opencode.json
+ENV EDITOR=hx
 USER opencode
 WORKDIR /workspace
 ENTRYPOINT ["opencode"]