add snap definition to devcontainer + snapcraft file

.devcontainer/Dockerfile

@@ -4,3 +4,20 @@ FROM mcr.microsoft.com/devcontainers/rust:latest
 # Install Required Dependencies
 RUN apt-get -qq update
 RUN apt-get install -y build-essential cmake git libgit2-dev clang libncurses5-dev libncursesw5-dev zlib1g-dev pkg-config libssl-dev llvm
+
+# Install snapd and its dependencies
+RUN apt-get install -y snapd fuse squashfuse sudo gh
+
+# Create a script to start snapd
+RUN echo '#!/bin/bash\n\
+/usr/lib/snapd/snapd &\n\
+sleep 5\n\
+exec "$@"' > /start-snapd.sh && \
+    chmod +x /start-snapd.sh
+
+
+VOLUME ["/sys/fs/cgroup"]
+
+# Use the script as the entry point
+ENTRYPOINT ["/start-snapd.sh"]
+CMD ["bash"]

.devcontainer/devcontainer.json

@@ -16,5 +16,6 @@
           "github.copilot-chat"
         ]
       }
-    }
+    },
+    "runArgs": ["--privileged", "-v", "/sys/fs/cgroup:/sys/fs/cgroup:ro", "-v", "/tmp:/tmp"]
   }

.packaging/snaps/snapcraft.yaml

@@ -0,0 +1,27 @@
+name: grin
+version: v5.1.0
+summary: Minimal implementation of the Mimblewimble protocol
+description: |
+  https://grin.mw/
+
+epoch: 3*
+confinement: strict
+grade: stable
+base: core18
+parts:
+  grin:
+    plugin: rust
+    source: https://github.com/mimblewimble/grin.git
+    source-tag: v5.1.0
+    build-packages:
+      - clang
+      - libncurses5-dev
+      - libncursesw5-dev
+
+apps:
+  grin:
+    environment:
+      LC_ALL: C.UTF-8
+      LANG: C.UTF-8
+    command: bin/grin
+    plugs: [network, network-bind]