diff --git a/justfile b/justfile
new file mode 100644
index 0000000..8bdc60f
--- /dev/null
+++ b/justfile
@@ -0,0 +1,7 @@
+# Import all devnet management commands from templates
+import 'templates/justfile'
+
+# Default recipe delegates to imported justfile
+[private]
+@_default:
+    just default
diff --git a/templates/default-alphanet/README.md b/templates/default-alphanet/README.md
new file mode 100644
index 0000000..8b3bf89
--- /dev/null
+++ b/templates/default-alphanet/README.md
@@ -0,0 +1,44 @@
+# Default Alphanet Template
+
+Full-featured alphanet template with comprehensive infrastructure for production-like testing.
+
+## Description
+
+This is the standard template for creating production-like alphanets. It provides a complete environment with multiple nodes, redundancy, and all standard services.
+
+## Infrastructure
+
+### Nodes (per chain)
+- **3 Sequencer nodes**
+  - 2x op-geth (full)
+  - 1x op-reth (full)
+- **2 RPC nodes**
+  - 1x op-geth (archive)
+  - 1x op-reth (archive)
+- **2 Snapsync nodes**
+  - 1x op-geth (full)
+  - 1x op-reth (full)
+
+### Services (per chain)
+- `op-proposer` - L2 output proposals
+- `op-batcher` - Transaction batching to L1
+- `op-challenger` - Dispute resolution
+- `proxyd-public` - Public RPC load balancer
+- `peer-mgmt-service` - P2P peer management
+- `op-conductor-mon` - Conductor monitoring
+- `op-conductor-ops` - Conductor operations
+- `op-dispute-mon` - Dispute monitoring
+- `op-challenger-runner` - Challenger automation
+
+### Global Services
+- `op-acceptor` - Test runner
+
+## Configuration
+
+### Environment Variables
+- `OP_NODE_LOG_LEVEL: info`
+- `GETH_LOG_LEVEL: info`
+- `OP_CONDUCTOR_LOG_LEVEL: info`
+
+### Network
+- L1: Sepolia
diff --git a/templates/default-alphanet/inventory.yaml b/templates/default-alphanet/inventory.yaml
new file mode 100644
index 0000000..7957a1d
--- /dev/null
+++ b/templates/default-alphanet/inventory.yaml
@@ -0,0 +1,207 @@
+chains:
+  - values:
+      op-node:
+        env:
+          OP_NODE_LOG_LEVEL: info
+      op-geth:
+        env:
+          GETH_LOG_LEVEL: info
+      op-conductor:
+        env:
+          OP_CONDUCTOR_LOG_LEVEL: info
+    nodes:
+      - kind: "node"
+        name: "sequencer-0"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "sequencer-1"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "sequencer-2"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-0"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-1"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-2"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "kona-node"
+
+      - kind: "node"
+        name: "snapsync-0"
+        spec:
+          kind: "snapsync"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "snapsync-1"
+        spec:
+          kind: "snapsync"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "snapsync-2"
+        spec:
+          kind: "snapsync"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "kona-node"
+
+    services:
+      - kind: "proposer"
+        name: "op-proposer"
+        spec:
+          kind: "op-proposer"
+        deps:
+          nodes:
+            - "rpc-0"
+
+      - kind: "batcher"
+        name: "op-batcher"
+        spec:
+          kind: "op-batcher"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "challenger"
+        name: "op-challenger"
+        spec:
+          kind: "op-challenger"
+        deps:
+          nodes:
+            - "rpc-0"
+
+      - kind: "public-rpc"
+        name: "proxyd-public"
+        spec:
+          kind: "proxyd"
+        deps:
+          nodes:
+            - "rpc-0"
+            - "rpc-1"
+            - "rpc-2"
+
+      - kind: "peer-mgmt-service"
+        name: "peer-mgmt-service"
+        spec:
+          kind: "peer-mgmt-service"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+            - "rpc-0"
+            - "rpc-1"
+            - "rpc-2"
+            - "snapsync-0"
+            - "snapsync-1"
+            - "snapsync-2"
+
+      - kind: "op-conductor-mon"
+        name: "op-conductor-mon"
+        spec:
+          kind: "op-conductor-mon"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "op-conductor-ops"
+        name: "op-conductor-ops"
+        spec:
+          kind: "op-conductor-ops"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "op-dispute-mon"
+        name: "op-dispute-mon"
+        spec:
+          kind: "op-dispute-mon"
+        deps:
+          nodes:
+            - "rpc-0"
+          services:
+            - "op-supervisor-rpc-0"
+
+      - kind: "op-challenger-runner"
+        name: "op-challenger-runner"
+        spec:
+          kind: "op-challenger-runner"
+        deps:
+          nodes:
+            - "rpc-0"
+
+services:
+  - kind: "test-runner"
+    name: "op-acceptor"
+    spec:
+      kind: "op-acceptor"
diff --git a/templates/default-alphanet/manifest.yaml b/templates/default-alphanet/manifest.yaml
new file mode 100644
index 0000000..c12864f
--- /dev/null
+++ b/templates/default-alphanet/manifest.yaml
@@ -0,0 +1,61 @@
+name: DEVNET_NAME
+type: alphanet
+status: offline
+deployed_on: ""
+description: |
+  Default alphanet configuration
+l1:
+  name: sepolia
+  chain_id: 11155111
+l2:
+  deployment:
+    op-deployer:
+      version: ""
+    l1-contracts:
+      locator: ""
+      version: ""
+    l2-contracts:
+      locator: ""
+      version: ""
+    overrides:
+      l2GenesisJovianTimeOffset: "0x0"
+    gas_limit: 60000000
+    eip1559_elasticity: 6
+    eip1559_denominator: 50
+    eip1559_denominator_canyon: 250
+  components:
+    op-batcher:
+      version: ""
+    op-challenger:
+      version: ""
+    op-conductor:
+      version: ""
+    op-geth:
+      version: ""
+    op-node:
+      version: ""
+    op-program:
+      version: ""
+    op-proposer:
+      version: ""
+    op-reth:
+      version: ""
+    proxyd:
+      version: ""
+    kona-node:
+      version: ""
+  charts: {}
+  bootnodes:
+    - enode://e63f16f93b44938a43ba8304d9948da3304e47c7a14fb1ce9d75194f2bd6784665aab18a8b38dc7772cd9a7fa71dd51997cc6cd8af0fc8915bc2fddcb68dfc87@34.123.30.27:0?discport=30305
+    - enode://524958a8fc12140491f59a78442d38d1f3cb96765136379dca2ce569f0d770de25931fc11ad1bcfe1af3d4db025d23c25a401e23c91f5f53ff281f25bd36e733@34.27.92.24:0?discport=30305
+    - enode://7353cf20a38a59c67139ccceaf4fa94be3487f0ace88ca368c24026f0825ff6983493a6b7c6e4286e18394880f3f450987ca1f26d848b7057e7dfdf3eb6b71a5@34.28.88.99:0?discport=30305
+  chains:
+    - name: DEVNET_NAME-0
+      chain_id: ""
+      features: []
+      deployment:
+        overrides: {}
+        gas_limit: 60000000
+        eip1559_elasticity: 6
+        eip1559_denominator: 50
+        eip1559_denominator_canyon: 250
diff --git a/templates/default-betanet/README.md b/templates/default-betanet/README.md
new file mode 100644
index 0000000..28a1990
--- /dev/null
+++ b/templates/default-betanet/README.md
@@ -0,0 +1,56 @@
+# Default Betanet Template
+
+Multi-chain betanet template with two chains: one permissioned and one permissionless.
+
+## Infrastructure
+
+### Chains
+- **Chain 0** (Permissioned)
+- **Chain 1** (Permissionless with `fp-permissionless` feature)
+
+### Nodes (per chain)
+- **3 Sequencer nodes**
+  - 2x op-geth (full)
+  - 1x op-reth (full)
+- **2 RPC nodes**
+  - 1x op-geth (archive)
+  - 1x op-reth (archive)
+- **2 Snapsync nodes**
+  - 1x op-geth (full)
+  - 1x op-reth (full)
+
+### Services (per chain)
+- `op-proposer` - L2 output proposals
+- `op-batcher` - Transaction batching to L1
+- `op-challenger` - Dispute resolution
+- `proxyd-public` - Public RPC load balancer
+- `peer-mgmt-service` - P2P peer management
+- `op-conductor-mon` - Conductor monitoring
+- `op-conductor-ops` - Conductor operations
+- `op-dispute-mon` - Dispute monitoring
+- `op-faucet` - Testnet faucet
+
+### Chain-Specific Services
+- **Chain 1 only**: `op-challenger-runner` - Automated challenger
+
+### Global Services
+- `op-acceptor` - Test runner
+
+## Configuration
+
+### Manifest
+- **Type**: betanet
+- **L1**: Sepolia
+- **Genesis offset**: `l2GenesisIsthmusTimeOffset: "0x0"`
+
+### Components
+Includes all standard betanet components:
+- op-batcher
+- op-challenger
+- op-conductor
+- op-geth
+- op-node
+- op-program
+- op-proposer
+- op-reth
+- proxyd
diff --git a/templates/default-betanet/inventory.yaml b/templates/default-betanet/inventory.yaml
new file mode 100644
index 0000000..99b95f8
--- /dev/null
+++ b/templates/default-betanet/inventory.yaml
@@ -0,0 +1,392 @@
+chains:
+  - nodes:
+      - kind: "node"
+        name: "sequencer-0"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "sequencer-1"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "sequencer-2"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-0"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-1"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-2"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "kona-node"
+
+      - kind: "node"
+        name: "snapsync-0"
+        spec:
+          kind: "snapsync"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "snapsync-1"
+        spec:
+          kind: "snapsync"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "snapsync-2"
+        spec:
+          kind: "snapsync"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "kona-node"
+
+    services:
+      - kind: "proposer"
+        name: "op-proposer"
+        spec:
+          kind: "op-proposer"
+        deps:
+          nodes:
+            - "rpc-0"
+
+      - kind: "batcher"
+        name: "op-batcher"
+        spec:
+          kind: "op-batcher"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "challenger"
+        name: "op-challenger"
+        spec:
+          kind: "op-challenger"
+        deps:
+          nodes:
+            - "rpc-0"
+
+      - kind: "public-rpc"
+        name: "proxyd-public"
+        spec:
+          kind: "proxyd"
+        deps:
+          nodes:
+            - "rpc-0"
+            - "rpc-1"
+            - "rpc-2"
+
+      - kind: "peer-mgmt-service"
+        name: "peer-mgmt-service"
+        spec:
+          kind: "peer-mgmt-service"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+            - "rpc-0"
+            - "rpc-1"
+            - "rpc-2"
+            - "snapsync-0"
+            - "snapsync-1"
+            - "snapsync-2"
+
+      - kind: "op-conductor-mon"
+        name: "op-conductor-mon"
+        spec:
+          kind: "op-conductor-mon"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "op-conductor-ops"
+        name: "op-conductor-ops"
+        spec:
+          kind: "op-conductor-ops"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "op-dispute-mon"
+        name: "op-dispute-mon"
+        spec:
+          kind: "op-dispute-mon"
+        deps:
+          nodes:
+            - "rpc-0"
+
+      - kind: "faucet"
+        name: "op-faucet"
+        spec:
+          kind: "op-faucet"
+        deps:
+          nodes:
+            - "rpc-0"
+
+  - nodes:
+      - kind: "node"
+        name: "sequencer-0"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "sequencer-1"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "sequencer-2"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-0"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-1"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-2"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "kona-node"
+
+      - kind: "node"
+        name: "snapsync-0"
+        spec:
+          kind: "snapsync"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "snapsync-1"
+        spec:
+          kind: "snapsync"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "snapsync-2"
+        spec:
+          kind: "snapsync"
+          el:
+            kind: "op-geth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "kona-node"
+
+    services:
+      - kind: "proposer"
+        name: "op-proposer"
+        spec:
+          kind: "op-proposer"
+        deps:
+          nodes:
+            - "rpc-0"
+
+      - kind: "batcher"
+        name: "op-batcher"
+        spec:
+          kind: "op-batcher"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "challenger"
+        name: "op-challenger"
+        spec:
+          kind: "op-challenger"
+        deps:
+          nodes:
+            - "rpc-0"
+
+      - kind: "public-rpc"
+        name: "proxyd-public"
+        spec:
+          kind: "proxyd"
+        deps:
+          nodes:
+            - "rpc-0"
+            - "rpc-1"
+            - "rpc-2"
+
+      - kind: "peer-mgmt-service"
+        name: "peer-mgmt-service"
+        spec:
+          kind: "peer-mgmt-service"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+            - "rpc-0"
+            - "rpc-1"
+            - "rpc-2"
+            - "snapsync-0"
+            - "snapsync-1"
+            - "snapsync-2"
+
+      - kind: "op-conductor-mon"
+        name: "op-conductor-mon"
+        spec:
+          kind: "op-conductor-mon"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "op-conductor-ops"
+        name: "op-conductor-ops"
+        spec:
+          kind: "op-conductor-ops"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "op-dispute-mon"
+        name: "op-dispute-mon"
+        spec:
+          kind: "op-dispute-mon"
+        deps:
+          nodes:
+            - "rpc-0"
+
+      - kind: "op-challenger-runner"
+        name: "op-challenger-runner"
+        spec:
+          kind: "op-challenger-runner"
+        deps:
+          nodes:
+            - "rpc-0"
+
+      - kind: "faucet"
+        name: "op-faucet"
+        spec:
+          kind: "op-faucet"
+        deps:
+          nodes:
+            - "rpc-0"
+
+services:
+  - kind: "test-runner"
+    name: "op-acceptor"
+    spec:
+      kind: "op-acceptor"
diff --git a/templates/default-betanet/manifest.yaml b/templates/default-betanet/manifest.yaml
new file mode 100644
index 0000000..face7ed
--- /dev/null
+++ b/templates/default-betanet/manifest.yaml
@@ -0,0 +1,63 @@
+name: DEVNET_NAME
+type: betanet
+status: offline
+deployed_on: ""
+description: |
+  Default betanet configuration with two chains one permissioned and one permissionless
+l1:
+  name: sepolia
+  chain_id: 11155111
+l2:
+  deployment:
+    op-deployer:
+      version: ""
+    l1-contracts:
+      locator: ""
+      version: ""
+    l2-contracts:
+      locator: ""
+      version: ""
+    overrides:
+      l2GenesisJovianTimeOffset: "0x0"
+    gas_limit: 60000000
+    eip1559_elasticity: 6
+    eip1559_denominator: 50
+    eip1559_denominator_canyon: 250
+  components:
+    op-batcher:
+      version: ""
+    op-challenger:
+      version: ""
+    op-conductor:
+      version: ""
+    op-geth:
+      version: ""
+    op-node:
+      version: ""
+    op-program:
+      version: ""
+    op-proposer:
+      version: ""
+    op-reth:
+      version: ""
+    proxyd:
+      version: ""
+    kona-node:
+      version: ""
+  charts: {}
+  bootnodes:
+    - enode://e63f16f93b44938a43ba8304d9948da3304e47c7a14fb1ce9d75194f2bd6784665aab18a8b38dc7772cd9a7fa71dd51997cc6cd8af0fc8915bc2fddcb68dfc87@34.123.30.27:0?discport=30305
+    - enode://524958a8fc12140491f59a78442d38d1f3cb96765136379dca2ce569f0d770de25931fc11ad1bcfe1af3d4db025d23c25a401e23c91f5f53ff281f25bd36e733@34.27.92.24:0?discport=30305
+    - enode://7353cf20a38a59c67139ccceaf4fa94be3487f0ace88ca368c24026f0825ff6983493a6b7c6e4286e18394880f3f450987ca1f26d848b7057e7dfdf3eb6b71a5@34.28.88.99:0?discport=30305
+  chains:
+    - name: DEVNET_NAME-0
+      chain_id: ""
+      features: []
+      deployment:
+        overrides: {}
+    - name: DEVNET_NAME-1
+      chain_id: ""
+      features:
+        - fp-permissionless
+      deployment:
+        overrides: {}
diff --git a/templates/default-reth/inventory.yaml b/templates/default-reth/inventory.yaml
new file mode 100644
index 0000000..f4eb3f6
--- /dev/null
+++ b/templates/default-reth/inventory.yaml
@@ -0,0 +1,122 @@
+chains:
+  - nodes:
+      - kind: "node"
+        name: "sequencer-0"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "sequencer-1"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "sequencer-2"
+        spec:
+          kind: "sequencer"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "full"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-0"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "op-node"
+
+      - kind: "node"
+        name: "rpc-1"
+        spec:
+          kind: "rpc"
+          el:
+            kind: "op-reth"
+            spec:
+              kind: "archive"
+          cl:
+            kind: "kona-node"
+
+    services:
+      - kind: "batcher"
+        name: "op-batcher"
+        spec:
+          kind: "op-batcher"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "public-rpc"
+        name: "proxyd-public"
+        spec:
+          kind: "proxyd"
+        deps:
+          nodes:
+            - "rpc-0"
+            - "rpc-1"
+
+      - kind: "peer-mgmt-service"
+        name: "peer-mgmt-service"
+        spec:
+          kind: "peer-mgmt-service"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+            - "rpc-0"
+            - "rpc-1"
+
+      - kind: "op-conductor-mon"
+        name: "op-conductor-mon"
+        spec:
+          kind: "op-conductor-mon"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "op-conductor-ops"
+        name: "op-conductor-ops"
+        spec:
+          kind: "op-conductor-ops"
+        deps:
+          nodes:
+            - "sequencer-0"
+            - "sequencer-1"
+            - "sequencer-2"
+
+      - kind: "faucet"
+        name: "op-faucet"
+        spec:
+          kind: "op-faucet"
+        deps:
+          nodes:
+            - "rpc-0"
+
+services:
+  - kind: "test-runner"
+    name: "op-acceptor"
+    spec:
+      kind: "op-acceptor"
diff --git a/templates/default-reth/manifest.yaml b/templates/default-reth/manifest.yaml
new file mode 100644
index 0000000..4b84dfe
--- /dev/null
+++ b/templates/default-reth/manifest.yaml
@@ -0,0 +1,57 @@
+name: DEVNET_NAME
+type: alphanet
+status: offline
+deployed_on: ""
+description: |
+  Default devnet configuration with a reth focus
+l1:
+  name: sepolia
+  chain_id: 11155111
+l2:
+  deployment:
+    op-deployer:
+      version: ""
+    l1-contracts:
+      locator: ""
+      version: ""
+    l2-contracts:
+      locator: ""
+      version: ""
+    overrides:
+      l2GenesisJovianTimeOffset: "0x0"
+    gas_limit: 60000000
+    eip1559_elasticity: 6
+    eip1559_denominator: 50
+    eip1559_denominator_canyon: 250
+  components:
+    op-batcher:
+      version: ""
+    op-challenger:
+      version: ""
+    op-conductor:
+      version: ""
+    op-geth:
+      version: ""
+    op-node:
+      version: ""
+    op-program:
+      version: ""
+    op-proposer:
+      version: ""
+    op-reth:
+      version: ""
+    proxyd:
+      version: ""
+    kona-node:
+      version: ""
+  charts: {}
+  bootnodes:
+    - enode://e63f16f93b44938a43ba8304d9948da3304e47c7a14fb1ce9d75194f2bd6784665aab18a8b38dc7772cd9a7fa71dd51997cc6cd8af0fc8915bc2fddcb68dfc87@34.123.30.27:0?discport=30305
+    - enode://524958a8fc12140491f59a78442d38d1f3cb96765136379dca2ce569f0d770de25931fc11ad1bcfe1af3d4db025d23c25a401e23c91f5f53ff281f25bd36e733@34.27.92.24:0?discport=30305
+    - enode://7353cf20a38a59c67139ccceaf4fa94be3487f0ace88ca368c24026f0825ff6983493a6b7c6e4286e18394880f3f450987ca1f26d848b7057e7dfdf3eb6b71a5@34.28.88.99:0?discport=30305
+  chains:
+    - name: DEVNET_NAME-0
+      chain_id: ""
+      features: []
+      deployment:
+        overrides: {}
diff --git a/templates/justfile b/templates/justfile
new file mode 100644
index 0000000..b9b7638
--- /dev/null
+++ b/templates/justfile
@@ -0,0 +1,92 @@
+# Shared devnet management commands
+# This file can be used standalone or imported by other repositories
+
+# Show available commands and usage
+default:
+    @echo "Devnet Management Commands"
+    @echo "=========================="
+    @echo ""
+    @echo "Usage: just <command> [arguments]"
+    @echo ""
+    @echo "Commands:"
+    @echo "  list-templates"
+    @echo "      List all available devnet templates"
+    @echo ""
+    @echo "  create-devnet <net_type> <name> <template>"
+    @echo "      Create a new devnet"
+    @echo "      - net_type: 'alphanets' or 'betanets' (required)"
+    @echo "      - name: devnet name (required)"
+    @echo "      - template: template to use (required)"
+    @echo ""
+    @echo "Examples:"
+    @echo "  just list-templates"
+    @echo "  just create-devnet alphanets my-test default-alphanet"
+    @echo "  just create-devnet betanets rehearsal-3 default-betanet"
+    @echo "  just create-devnet alphanets my-rust-test default-reth"
+    @echo ""
+    @echo "Available templates:"
+    @ls -1 templates/ 2>/dev/null | grep -v justfile | sed 's/^/  - /' || echo "  (run 'just list-templates' to see)"
+
+# List available templates
+list-templates:
+    @echo "Available devnet templates:"
+    @ls -1 templates/ | grep -v justfile | sed 's/^/  - /'
+
+# Create a new devnet with the given name using a specific template
+create-devnet net_type name template:
+    #!/usr/bin/env bash
+    set -euo pipefail
+    
+    # Validate net_type
+    if [[ "{{net_type}}" != "alphanets" && "{{net_type}}" != "betanets" ]]; then
+        echo "Error: net_type must be 'alphanets' or 'betanets', got '{{net_type}}'"
+        exit 1
+    fi
+    
+    TEMPLATE_DIR="templates/{{template}}"
+    TARGET_DIR="{{net_type}}/{{name}}"
+    
+    # Check if template exists
+    if [ ! -d "$TEMPLATE_DIR" ]; then
+        echo "Error: Template '{{template}}' not found at $TEMPLATE_DIR"
+        exit 1
+    fi
+    
+    # Check if directory already exists
+    if [ -d "$TARGET_DIR" ]; then
+        echo "Error: Devnet '{{name}}' already exists at $TARGET_DIR"
+        exit 1
+    fi
+    
+    # Create the devnet directory
+    echo "Creating {{net_type}} devnet '{{name}}' from template '{{template}}'..."
+    mkdir -p "$TARGET_DIR"
+    
+    # Copy inventory.yaml
+    if [ -f "$TEMPLATE_DIR/inventory.yaml" ]; then
+        echo "  Copying inventory.yaml..."
+        cp "$TEMPLATE_DIR/inventory.yaml" "$TARGET_DIR/inventory.yaml"
+    fi
+    
+    # Copy manifest.yaml and replace DEVNET_NAME placeholder
+    if [ -f "$TEMPLATE_DIR/manifest.yaml" ]; then
+        echo "  Copying manifest.yaml..."
+        cp "$TEMPLATE_DIR/manifest.yaml" "$TARGET_DIR/manifest.yaml"
+        sed -i '' "s/DEVNET_NAME/{{name}}/g" "$TARGET_DIR/manifest.yaml"
+        
+        # Set the type field in manifest based on net_type (alphanets -> alphanet, betanets -> betanet)
+        NET_TYPE_VALUE=$(echo "{{net_type}}" | sed 's/s$//')
+        sed -i '' "s/^type: .*/type: $NET_TYPE_VALUE/" "$TARGET_DIR/manifest.yaml"
+    fi
+    
+    echo "✓ Successfully created devnet: {{name}}"
+    echo "  Network type: {{net_type}}"
+    echo "  Template: {{template}}"
+    echo "  Location: $TARGET_DIR"
+    echo "  Files created:"
+    [ -f "$TARGET_DIR/inventory.yaml" ] && echo "    - $TARGET_DIR/inventory.yaml"
+    [ -f "$TARGET_DIR/manifest.yaml" ] && echo "    - $TARGET_DIR/manifest.yaml"
+    echo ""
+    echo "Next steps:"
+    echo "  1. Edit $TARGET_DIR/manifest.yaml to configure your devnet"
+    echo "  2. Edit $TARGET_DIR/inventory.yaml to configure nodes and services"