devshell testing

Author: vaporif

.github/workflows/e2e.yml

@@ -156,28 +156,16 @@ jobs:
         with:
           submodules: recursive
 
-      - uses: dtolnay/rust-toolchain@1.95.0
-
-      - uses: solana-developers/github-actions/setup-all@v0.2.7
-        with:
-          anchor_version: ${{ env.ANCHOR_VERSION }}
-          solana_version: ${{ env.SOLANA_VERSION }}
-
-      - uses: arduino/setup-protoc@v3
-
-      - uses: Swatinem/rust-cache@v2
-        with:
-          key: solana-build
-          workspaces: external/solidity-ibc-eureka/programs/solana -> target
+      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
 
       - name: Build Solana programs
-        run: anchor build
-        working-directory: external/solidity-ibc-eureka/programs/solana
+        run: nix develop --command bash -c "cd external/solidity-ibc-eureka/programs/solana && anchor build"
 
       - name: Prepare Solana program fixtures
         run: |
           mkdir -p solana-programs
-          cp external/solidity-ibc-eureka/programs/solana/target/deploy/*.so solana-programs/
+          cp external/solidity-ibc-eureka/programs/solana/target/sbf-solana-solana/release/*.so solana-programs/
           cp external/solidity-ibc-eureka/solana-keypairs/localnet/*-keypair.json solana-programs/
 
       - uses: actions/upload-artifact@v7