diff --git a/benchmarks/clean b/benchmarks/clean
new file mode 100755
index 0000000..325edec
--- /dev/null
+++ b/benchmarks/clean
@@ -0,0 +1,8 @@
+#!/usr/bin/env python3
+
+import os
+from fragments import garage, shared
+
+garage.destroy()
+shared.log("clean done")
+
diff --git a/benchmarks/fragments/.shared.py.swo b/benchmarks/fragments/.shared.py.swo
new file mode 100644
index 0000000..02b9acb
Binary files /dev/null and b/benchmarks/fragments/.shared.py.swo differ
diff --git a/benchmarks/fragments/garage.py b/benchmarks/fragments/garage.py
new file mode 100644
index 0000000..ac77475
--- /dev/null
+++ b/benchmarks/fragments/garage.py
@@ -0,0 +1,202 @@
+import glob, json, requests, time, garage_admin_sdk
+from os.path import exists
+from os import environ as env
+from pathlib import Path
+from fragments import shared
+from garage_admin_sdk.api import nodes_api, layout_api, key_api
+from garage_admin_sdk.model.node_cluster_info import NodeClusterInfo
+from garage_admin_sdk.model.layout_version import LayoutVersion
+from garage_admin_sdk.model.add_key_request import AddKeyRequest
+from garage_admin_sdk.model.update_key_request import UpdateKeyRequest
+from garage_admin_sdk.model.update_key_request_allow import UpdateKeyRequestAllow
+
+storage_path = "./i/am/not/defined"
+rpc_secret = "3e9abff5f9e480afbadb46a77b7a26fe0e404258f0dc3fd5386b0ba8e0ad2fba"
+metrics = "cacce0b2de4bc2d9f5b5fdff551e01ac1496055aed248202d415398987e35f81"
+admin = "ae8cb40ea7368bbdbb6430af11cca7da833d3458a5f52086f4e805a570fb5c2a"
+path = None
+access_key = None
+secret_key = None
+
+
+configuration = garage_admin_sdk.Configuration(
+    host = "http://localhost:3903/v0",
+    access_token = admin
+)
+api = garage_admin_sdk.ApiClient(configuration) 
+nodes = nodes_api.NodesApi(api)
+layout = layout_api.LayoutApi(api)
+keys = key_api.KeyApi(api)
+
+
+# Setup, launch on import
+storage_path = Path(shared.storage_path) / "garage" / env['HOST']
+if 'ZONE' in env:
+    storage_path = Path(shared.storage_path) / "garage" / env['ZONE'] / env['HOST']
+config = storage_path / "garage.toml"
+env['GARAGE_CONFIG_FILE'] = str(config)
+
+def deploy_coord(version=None, target=None):
+    destroy()
+    from_ci(version, target)
+    shared.log("start daemon")
+    daemon()
+    shared.log("discover nodes")
+    connect()
+    shared.log("build layout")
+    create_layout()
+    shared.log("create key")
+    create_key()
+    shared.log("ready")
+
+def deploy_follow(version=None, target=None):
+    destroy()
+    from_ci(version, target)
+    shared.log("start daemon")
+    daemon()
+    shared.log("wait for coord")
+    sync_on_key_up()
+    shared.log("ready")
+
+def from_local(p):
+    global path
+    path = p
+    shared.exec(f"{p} --version")
+
+def from_ci(version=None, target=None):
+    global path
+    version = version or "v0.7.3"
+    target = target or "x86_64-unknown-linux-musl"
+
+    binary = f"garage-{target}-{version}"
+    path = Path(shared.binary_path) / binary
+    if shared.id() != 1: return 
+
+    if not exists(path):
+        shared.exec(f"mkdir -p {shared.binary_path}")
+        shared.exec(f"wget https://garagehq.deuxfleurs.fr/_releases/{version}/{target}/garage -O {path}")
+    shared.exec(f"chmod +x {path}")
+    shared.exec(f"{path} --version")
+
+def daemon():
+    shared.exec(f"mkdir -p {storage_path}")
+    with open(config, 'w+') as f:
+        f.write(f"""
+metadata_dir = "{storage_path}/meta"
+data_dir = "{storage_path}/data"
+
+replication_mode = "3"
+
+rpc_bind_addr = "[::]:3901"
+rpc_public_addr = "[{env['IP']}]:3901"
+rpc_secret = "{rpc_secret}"
+
+bootstrap_peers=[]
+
+[s3_api]
+s3_region = "garage"
+api_bind_addr = "[::]:3900"
+root_domain = ".s3.garage"
+
+[s3_web]
+bind_addr = "[::]:3902"
+root_domain = ".web.garage"
+index = "index.html"
+
+[admin]
+api_bind_addr = "0.0.0.0:3903"
+metrics_token = "{metrics}"
+admin_token = "{admin}"
+        """)
+
+    shared.exec(f"{path} server 2>> {storage_path}/logs.stderr 1>> {storage_path}/logs.stdout & echo $! > {storage_path}/daemon.pid")
+    time.sleep(1)
+
+    node_info = storage_path / "node_info"
+    node_id = nodes.get_nodes().node
+    with open(node_info, 'w+') as f:
+        f.write(json.dumps({
+            "node_addr": f"{node_id}@{env['IP']}:3901",
+            "node_id": node_id,
+            "zone": env['ZONE'],
+            "host": env['HOST'],
+        }))
+
+def destroy():
+    dpid = Path(storage_path) / "daemon.pid"
+    if exists(dpid):
+        shared.exec(f"kill -9 $(cat {dpid})")
+        shared.exec(f"rm -f {dpid}")
+    if len(str(storage_path)) < 8: # arbitrary, stupid safe guard
+        print(storage_path)
+        raise Exception("You tried to clean a storage path that might be the root of your FS, panicking...")
+    shared.exec(f"rm -fr {storage_path}")
+
+# this function is ugly, sorry :s
+_cluster_info = None
+def cluster_info():
+    global _cluster_info
+    if _cluster_info is not None: return _cluster_info
+
+    while True:
+        time.sleep(1)
+        node_files = glob.glob(f"{shared.storage_path}/**/node_info", recursive=True)
+        if len(node_files) == shared.count(): break
+
+    _cluster_info = [ json.loads(Path(f).read_text()) for f in node_files ]
+    return _cluster_info
+
+
+def connect():
+    cinf = cluster_info()
+    ret = nodes.add_node([n['node_addr'] for n in cinf])
+    for st in ret:
+        if not st.success:
+            raise Exception("Node connect failed", ret)
+    shared.log("all nodes connected")
+
+def create_layout():
+    v = layout.get_layout().version
+
+    cinf = cluster_info()
+    nlay = dict()
+    for n in cinf:
+        nlay[n['node_id']] = NodeClusterInfo(
+            zone = n['zone'],
+            capacity = 1,
+            tags = [ n['host'] ],
+        )
+    layout.add_layout(nlay)
+    layout.apply_layout(LayoutVersion(version=v+1))
+
+def create_key():
+    global key
+    kinfo = shared.fn_retry(lambda: keys.add_key(AddKeyRequest(name="mknet")))
+    allow_create = UpdateKeyRequestAllow(create_bucket=True)
+    keys.update_key(kinfo.access_key_id, UpdateKeyRequest(allow=allow_create))
+    key = kinfo
+
+
+def delete_key():
+    global key
+    delete_key(key.access_key_id)
+    key = None
+
+def sync_on_key_up():
+    global key
+    while True:
+        try:
+            key = keys.search_key("mknet")
+            return key
+        except:
+            pass
+        time.sleep(1)
+
+def sync_on_key_down():
+    while True:
+        try:
+            keys.search_key("mknet")
+        except:
+            return
+        time.sleep(1)
+
diff --git a/example/deploy_minio.py b/benchmarks/fragments/minio.py
old mode 100755
new mode 100644
similarity index 100%
rename from example/deploy_minio.py
rename to benchmarks/fragments/minio.py
diff --git a/benchmarks/fragments/s3lat.py b/benchmarks/fragments/s3lat.py
new file mode 100644
index 0000000..c25594e
--- /dev/null
+++ b/benchmarks/fragments/s3lat.py
@@ -0,0 +1,18 @@
+a = """
+echo "sleep 3 min to wait for minio bootstrap"
+sleep 180
+
+export ENDPOINT=localhost:9000
+export AWS_ACCESS_KEY_ID=minioadmin
+export AWS_SECRET_ACCESS_KEY=minioadmin
+
+mc alias set minio-bench http://$ENDPOINT $AWS_ACCESS_KEY_ID $AWS_SECRET_ACCESS_KEY
+for i in $(seq 1 10); do
+  mc mb minio-bench/bench$i
+done
+
+s3lat | tee 50ms.minio.csv
+"""
+
+def on_garage():
+    raise Exception("Not yet implemented")
diff --git a/benchmarks/fragments/shared.py b/benchmarks/fragments/shared.py
new file mode 100644
index 0000000..e0cd449
--- /dev/null
+++ b/benchmarks/fragments/shared.py
@@ -0,0 +1,28 @@
+import os, time
+
+binary_path = "/tmp/mknet-bin"
+storage_path = "/tmp/mknet-store"
+
+def exec(s): 
+    if os.system(s) != 0:
+        raise Exception("Command terminated with an error")
+def exec_retry(s, cnt=16):
+    print(s)
+    for i in range(cnt):
+        time.sleep(i) # this is expected to sleep before running the command to reduce the noise
+        if os.system(s) == 0: return
+    raise Exception("Command terminated with an error too many times")
+def fn_retry(f, cnt=5):
+    for i in range(cnt):
+        try:
+            r = f()
+            return r
+        except Exception as e:
+            if i+1 == cnt: raise e
+            log(f"failed call, retry in {i} sec")
+            time.sleep(i)
+
+def id(): return int(os.environ['ID'])
+def count(): return int(os.environ['SERVER_COUNT'])
+def log(*args): print(f"[{id()}/{count()} - {os.environ['HOST']}]", *args)
+
diff --git a/benchmarks/garage-s3lat b/benchmarks/garage-s3lat
new file mode 100755
index 0000000..361ed26
--- /dev/null
+++ b/benchmarks/garage-s3lat
@@ -0,0 +1,12 @@
+#!/usr/bin/env python3
+from fragments import garage, s3lat, shared
+
+if shared.id() == 1:
+    garage.deploy_coord()
+    s3lat.on_garage()
+    garage.delete_key()
+    garage.destroy()
+else:
+    garage.deploy_follow()
+    garage.sync_on_key_down()
+    garage.destroy()
diff --git a/benchmarks/requirements.txt b/benchmarks/requirements.txt
new file mode 100644
index 0000000..41a5912
--- /dev/null
+++ b/benchmarks/requirements.txt
@@ -0,0 +1 @@
+git+https://git.deuxfleurs.fr/quentin/garage-admin-sdk@7b1c1faf7a#egg=garage-admin-sdk&subdirectory=python
diff --git a/example/deploy_garage.sh b/example/deploy_garage.sh
deleted file mode 100755
index 0dc9b38..0000000
--- a/example/deploy_garage.sh
+++ /dev/null
@@ -1,61 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-IFS=$'\n\t'
-
-GARAGE_PATH=garage
-STORAGE_PATH=/tmp/garage-testnet
-export RPC_SECRET=3e9abff5f9e480afbadb46a77b7a26fe0e404258f0dc3fd5386b0ba8e0ad2fba
-
-if [ -z "$ZONE" ]; then
-	NODE_STORAGE_PATH=${STORAGE_PATH}/${HOST}
-else
-	NODE_STORAGE_PATH=${STORAGE_PATH}/${ZONE}/${HOST}
-fi
-BOOTSTRAP_FILE=${STORAGE_PATH}/bootstrap_peer
-export GARAGE_CONFIG_FILE=${NODE_STORAGE_PATH}/garage.toml 
-
-
-mkdir -p ${NODE_STORAGE_PATH}
-cd ${NODE_STORAGE_PATH}
-rm ${BOOTSTRAP_FILE} 2>/dev/null || true
-
-cat > ${GARAGE_CONFIG_FILE} << EOF
-metadata_dir = "${NODE_STORAGE_PATH}/meta"
-data_dir = "${NODE_STORAGE_PATH}/data"
-
-replication_mode = "3"
-
-rpc_bind_addr = "[::]:3901"
-rpc_public_addr = "[${IP}]:3901"
-rpc_secret = "${RPC_SECRET}"
-
-bootstrap_peers=[]
-
-[s3_api]
-s3_region = "garage"
-api_bind_addr = "[::]:3900"
-root_domain = ".s3.garage"
-
-[s3_web]
-bind_addr = "[::]:3902"
-root_domain = ".web.garage"
-index = "index.html"
-EOF
-
-RUST_LOG=garage=debug ${GARAGE_PATH} server 2>> ${NODE_STORAGE_PATH}/logs & disown
-sleep 2
-
-CONFIG_NODE_FPATH=$(find /tmp/garage-testnet/ -maxdepth 3 -name garage.toml|head -n 1)
-
-SELF_ID=$(${GARAGE_PATH} node id 2>/dev/null)
-SHORT_ID=$(echo ${SELF_ID} | cut -c-64)
-
-${GARAGE_PATH} -c ${CONFIG_NODE_FPATH} node connect ${SELF_ID}
-${GARAGE_PATH} -c ${CONFIG_NODE_FPATH} layout assign ${SHORT_ID} -z ${ZONE:-unzonned-${HOST}} -c 1 -t ${HOST}
-
-if [ ${CONFIG_NODE_FPATH} == ${GARAGE_CONFIG_FILE} ]; then
-	sleep 2
-	${GARAGE_PATH} layout show
-	${GARAGE_PATH} layout apply --version 1
-fi
diff --git a/setup.py b/setup.py
index fda29c5..6c58b07 100644
--- a/setup.py
+++ b/setup.py
@@ -3,4 +3,8 @@ setup(name='mknet',
       version='1.0',
       scripts=['mknet'],
       py_modules=['net'],
+      install_requires=[
+          'PyYAML',
+          'requests'
+      ],
       )
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..a253897
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,12 @@
+{ pkgs ? import <nixpkgs> {} }:
+  pkgs.mkShell {
+    nativeBuildInputs = [ 
+      pkgs.python310
+      pkgs.python310Packages.pyyaml
+      pkgs.python310Packages.requests
+
+      # to test the pip setup
+      pkgs.python310Packages.pip
+      pkgs.python310Packages.setuptools
+    ];
+}
diff --git a/topo/multi-dc.yml b/topo/multi-dc.yml
new file mode 100644
index 0000000..77e695b
--- /dev/null
+++ b/topo/multi-dc.yml
@@ -0,0 +1,46 @@
+links:
+  - &100
+    bandwidth: 100M
+    latency: 500us
+  - &wan
+    bandwidth: 100M
+    latency: 50ms
+    jitter: 10ms
+
+zones:
+  - &dc1
+    name: dc1
+    internal: *100
+    external: *wan
+  - &dc2
+    name: dc2
+    internal: *100
+    external: *wan
+  - &dc3
+    name: dc3
+    internal: *100
+    external: *wan
+
+servers:
+  - name: dc1s1
+    zone: *dc1
+  - name: dc1s2
+    zone: *dc1
+  - name: dc2s1
+    zone: *dc2
+  - name: dc2s2
+    zone: *dc2
+  - name: dc3s1
+    zone: *dc3
+  - name: dc3s2
+    zone: *dc3
+
+global:
+  subnet:
+    base: 'fc00:9a7a:9e::'
+    local: 64
+    zone: 16
+  latency-offset: 3ms
+  upstream:
+    ip: fc00:9a7a:9e:ffff:ffff:ffff:ffff:ffff
+    conn: *wan
diff --git a/topo/single-dc.yml b/topo/single-dc.yml
new file mode 100644
index 0000000..39427aa
--- /dev/null
+++ b/topo/single-dc.yml
@@ -0,0 +1,34 @@
+links:
+  - &fiber
+    bandwidth: 100M
+    latency: 50ms
+    jitter: 10ms
+
+zones:
+  - &dc1
+    name: dc1
+    internal: *fiber
+    external: *fiber
+
+servers:
+  - name: dc1s1
+    zone: *dc1
+  - name: dc1s2
+    zone: *dc1
+  - name: dc1s3
+    zone: *dc1
+  - name: dc1s4
+    zone: *dc1
+  - name: dc1s5
+    zone: *dc1
+
+global:
+  subnet:
+    base: 'fc00:9a7a:9e::'
+    local: 64
+    zone: 16
+  latency-offset: 3ms
+  upstream:
+    ip: fc00:9a7a:9e:ffff:ffff:ffff:ffff:ffff
+    conn: *fiber
+
diff --git a/topo/slow-net.yml b/topo/slow-net.yml
new file mode 100644
index 0000000..75fdfc2
--- /dev/null
+++ b/topo/slow-net.yml
@@ -0,0 +1,25 @@
+links:
+  - &slow
+    bandwidth: 1M
+    latency: 500us
+  - &1000
+    bandwidth: 1000M
+    latency: 100us
+
+servers:
+  - name: node1
+    <<: *slow
+  - name: node2
+    <<: *slow
+  - name: node3
+    <<: *slow
+
+global:
+  subnet:
+    base: 'fc00:9a7a:9e::'
+    local: 64
+    zone: 16
+  latency-offset: 3ms
+  upstream:
+    ip: fc00:9a7a:9e:ffff:ffff:ffff:ffff:ffff
+    conn: *1000
diff --git a/config.yml b/topo/with-vdsl.yml
similarity index 100%
rename from config.yml
rename to topo/with-vdsl.yml