diff --git a/install.py b/install.py
index a3316d5..ba74f40 100755
--- a/install.py
+++ b/install.py
@@ -7,11 +7,11 @@
 
 if bytes == str:
     raise NotImplementedError('python2 not supported')
+
 import sys
 import os
 import filecmp
 import shutil
-import time
 from subprocess import Popen, PIPE
 from glob import glob
 from ipaddress import IPv4Interface
@@ -66,22 +66,43 @@ ExecStart = /usr/bin/python3 /home/l_samenv/frappy/bin/secop-server %s
 [Install]
 WantedBy = multi-user.target
 """
+pip_requirements = {
+    'l_samenv': [],
+    'root': []
+}
 
 
-def frappy(cfg=None, port=None, **kwds):
+def frappy(cfg=None, port=None, requirements='', **kwds):
     if not cfg:
         return None
     if port:
         cfg = '-p %s %s' % (port, cfg)
+    pip_requirements['l_samenv'].extend(requirements.split(','))
+    with open('/home/l_samenv/frappy/requirements.txt') as f:
+        pip_requirements['l_samenv'].extend(f.read().split('\n'))
     return FRAPPY_TEMPLATE % cfg
 
 
 def router(**opts):
     if not opts:
         return None
+    with open('/root/aputools/requirements.txt') as f:
+        pip_requirements['root'].extend(f.read().split('\n'))
     return ROUTER_TEMPLATE
 
 
+def pip():
+    for user, requirements in pip_requirements.items():
+        if user == 'root':
+            filename = join('/home', user, 'pip_requirements.txt')
+            pipcmd = 'pip3 install -r %s' % filename
+        else:
+            filename = join('/root', 'pip_requirements.txt')
+            pipcmd = 'sudo --user %s pip3 install --user -r %s' % (user, filename)
+        if write_when_new(filename, '\n'.join(requirements)):
+            unix_cmd(pipcmd)
+
+
 SERVICES = dict(router=router, frappy=frappy)
 
 
@@ -344,12 +365,10 @@ def handle_config():
         raise
         return False
 
-    # pip requirements ?
-
     actions_dict = {}
     reload_systemd = False
     for service, template_func in SERVICES.items():
-        sction = service.upper()
+        section = service.upper()
         if parser.has_section(section):
            template = template_func(**dict(parser[section]))
         else:
@@ -371,7 +390,7 @@ def handle_config():
         else:
             if not active:
                 actions.add('restart')
-            if not enabled:
+            if not enabled
                 actions.add('enable')
         if write_when_new('/etc/systemd/system/%s.service' % service, template):
             reload_systemd = True
@@ -379,6 +398,7 @@ def handle_config():
                 actions.add('restart')
         actions_dict[service] = actions
 
+    pip()
     if reload_systemd:
         unix_cmd('systemctl daemon-reload')
     for service in SERVICES:
diff --git a/servercfg/apuslave3_5a4c90.cfg b/servercfg/apuslave3_5a4c90.cfg
index bd6b372..18abe18 100644
--- a/servercfg/apuslave3_5a4c90.cfg
+++ b/servercfg/apuslave3_5a4c90.cfg
@@ -15,3 +15,5 @@ enp4s0=192.168.127.4/24
 ; please refer to README.md for help
 cfg=sim_uniax
 port=5000
+requirements=numpy,scipy
+