diff --git a/dockerimg/Dockerfile.base b/dockerimg/Dockerfile.base
new file mode 100644
index 0000000..ca16e5c
--- /dev/null
+++ b/dockerimg/Dockerfile.base
@@ -0,0 +1,39 @@
+FROM golang:1.24-bookworm
+
+# Switch from dash to bash by default.
+SHELL ["/bin/bash", "-euxo", "pipefail", "-c"]
+
+# attempt to keep package installs lean
+RUN printf '%s\n' \
+      'path-exclude=/usr/share/man/*' \
+      'path-exclude=/usr/share/doc/*' \
+      'path-exclude=/usr/share/doc-base/*' \
+      'path-exclude=/usr/share/info/*' \
+      'path-exclude=/usr/share/locale/*' \
+      'path-exclude=/usr/share/groff/*' \
+      'path-exclude=/usr/share/lintian/*' \
+      'path-exclude=/usr/share/zoneinfo/*' \
+    > /etc/dpkg/dpkg.cfg.d/01_nodoc
+
+RUN apt-get update; \
+	apt-get install -y --no-install-recommends \
+		git jq sqlite3 npm nodejs gh ripgrep fzf python3 curl vim chromium lsof iproute2 less && \
+	apt-get clean && \
+	rm -rf /var/lib/apt/lists/* && \
+	rm -rf /usr/share/{doc,doc-base,info,lintian,man,groff,locale,zoneinfo}/*
+
+ENV PATH="$GOPATH/bin:$PATH"
+
+# While these binaries install generally useful supporting packages,
+# the specific versions are rarely what a user wants so there is no
+# point polluting the base image module with them.
+
+RUN go install golang.org/x/tools/cmd/goimports@latest; \
+	go install golang.org/x/tools/gopls@latest; \
+	go install mvdan.cc/gofumpt@latest; \
+	go clean -cache -testcache -modcache
+
+ENV GOTOOLCHAIN=auto
+ENV SKETCH=1
+
+RUN mkdir -p /root/.cache/sketch/webui
\ No newline at end of file