chore(arbitration): update machine version

onchain/permissionless-arbitration/Dockerfile

@@ -1,12 +1,15 @@
-FROM --platform=linux/amd64 diegonehab/machine-emulator
-RUN apt-get -y update; apt-get -y install curl
+FROM cartesi/machine-emulator:main
+
+USER 0
+RUN apt-get -y update; apt-get -y install curl git
 RUN curl -sSL https://github.com/foundry-rs/foundry/releases/download/nightly/foundry_nightly_linux_$(dpkg --print-architecture).tar.gz | \
     tar -zx -C /usr/local/bin
 
 ADD foundry.toml ./project/
 ADD lib ./project/lib/
 ADD src ./project/src/
 WORKDIR "./project"
+RUN forge --version
 RUN forge build
 
 ADD ./offchain/ ./offchain/

onchain/permissionless-arbitration/README.md

@@ -0,0 +1,7 @@
+# Permissionless Arbitration (NxN) Lua prototype Node
+
+## Run example
+
+```
+docker build -t nxn_playground:latest . && docker run --rm nxn_playground:latest
+```

onchain/permissionless-arbitration/offchain/program/gen_machine_simple.sh

@@ -3,7 +3,7 @@ cartesi-machine \
   --no-root-flash-drive \
   --rom-image="./bins/bootstrap.bin" \
   --ram-image="./bins/rv64ui-p-addi.bin" \
-  --uarch-ram-image="/opt/cartesi/share/images/uarch-ram.bin" \
+  --uarch-ram-image="/usr/share/cartesi-machine/uarch/uarch-ram.bin" \
   --uarch-ram-length=0x1000000 \
   --max-mcycle=0 \
   --store="simple-program"