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

.devcontainer/devcontainer.json

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+{
+  "name": "Go Telldus Matter Dev",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "context": ".."
+  },
+  "workspaceFolder": "/workspaces/go-telldus-matter",
+  "runArgs": [
+    "--privileged"
+  ],
+  "mounts": [
+    "source=/dev/bus/usb,target=/dev/bus/usb,type=bind",
+    "source=${localWorkspaceFolder}/tellstick.conf,target=/etc/tellstick.conf,type=bind"
+  ],
+  "containerEnv": {
+    "MQTT_URL": "10.10.3.12:1883",
+    "MQTT_USER": "telldus-dev",
+    "MQTT_PASSWORD": ""
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-vscode.Go",
+        "ms-vscode.vscode-typescript-next"
+      ],
+      "settings": {
+        "go.toolsManagement.checkForUpdates": "local",
+        "go.useLanguageServer": true
+      }
+    }
+  },
+  "postCreateCommand": "go mod download && cd frontend && npm install"
+}