more refinements

.devcontainer/Dockerfile

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+FROM golang:1.25.4-bookworm
+
+# Install dependencies for telldus-core
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    cmake \
+    libssl-dev \
+    libavahi-client-dev \
+    libglib2.0-dev \
+    libftdi-dev \
+    libconfuse-dev \
+    nodejs \
+    npm \
+    && rm -rf /var/lib/apt/lists/*
+
+# Build telldus-core
+COPY ./telldus-core /usr/src/telldus-core
+WORKDIR /usr/src/telldus-core
+RUN cmake . \
+    && make \
+    && make install \
+    && ldconfig
+
+# Set workdir for the project
+WORKDIR /workspaces/go-telldus-matter
+
+ENV GO111MODULE=on
+ENV CGO_ENABLED=1