diff --git a/piker/_async_utils.py b/piker/_async_utils.py
index 7069d597..b358e2f0 100644
--- a/piker/_async_utils.py
+++ b/piker/_async_utils.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Async utils no one seems to have built into a core lib (yet).
 """
diff --git a/piker/_profile.py b/piker/_profile.py
index c14071d0..a6f171c1 100644
--- a/piker/_profile.py
+++ b/piker/_profile.py
@@ -1,3 +1,18 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 """
 Profiling wrappers for internal libs.
diff --git a/piker/brokers/__init__.py b/piker/brokers/__init__.py
index 852b3db2..06328d4f 100644
--- a/piker/brokers/__init__.py
+++ b/piker/brokers/__init__.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Broker clients, daemons and general back end machinery.
 """
diff --git a/piker/brokers/_util.py b/piker/brokers/_util.py
index b8b6fccc..64f0ad3a 100644
--- a/piker/brokers/_util.py
+++ b/piker/brokers/_util.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Handy utils.
 """
diff --git a/piker/brokers/api.py b/piker/brokers/api.py
index 29fe5577..ba54a565 100644
--- a/piker/brokers/api.py
+++ b/piker/brokers/api.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Actor-aware broker agnostic interface.
 """
diff --git a/piker/brokers/cli.py b/piker/brokers/cli.py
index b1047b18..1c340fc3 100644
--- a/piker/brokers/cli.py
+++ b/piker/brokers/cli.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Console interface to broker client/daemons.
 """
diff --git a/piker/brokers/config.py b/piker/brokers/config.py
index bbf4d407..6718e794 100644
--- a/piker/brokers/config.py
+++ b/piker/brokers/config.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Broker configuration mgmt.
 """
diff --git a/piker/brokers/core.py b/piker/brokers/core.py
index 67255a41..5189df85 100644
--- a/piker/brokers/core.py
+++ b/piker/brokers/core.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Broker high level cross-process API layer.
 
diff --git a/piker/brokers/data.py b/piker/brokers/data.py
index ea2076bb..cdf056b4 100644
--- a/piker/brokers/data.py
+++ b/piker/brokers/data.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Real-time data feed machinery
 """
diff --git a/piker/brokers/ib.py b/piker/brokers/ib.py
index 2a1680ad..cf509bfb 100644
--- a/piker/brokers/ib.py
+++ b/piker/brokers/ib.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Interactive Brokers API backend.
 
@@ -150,7 +166,7 @@ class Client:
             # durationStr='1 D',
 
             # time length calcs
-            durationStr='{count} S'.format(count=3000 * 5),
+            durationStr='{count} S'.format(count=5000 * 5),
             barSizeSetting='5 secs',
 
             # always use extended hours
diff --git a/piker/brokers/kraken.py b/piker/brokers/kraken.py
index 90bd6476..4329a981 100644
--- a/piker/brokers/kraken.py
+++ b/piker/brokers/kraken.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Kraken backend.
 """
diff --git a/piker/brokers/questrade.py b/piker/brokers/questrade.py
index 6063b9f6..e54c75a2 100644
--- a/piker/brokers/questrade.py
+++ b/piker/brokers/questrade.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Questrade API backend.
 """
diff --git a/piker/brokers/robinhood.py b/piker/brokers/robinhood.py
index 34be0627..71b21055 100644
--- a/piker/brokers/robinhood.py
+++ b/piker/brokers/robinhood.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Robinhood API backend.
 
diff --git a/piker/calc.py b/piker/calc.py
index 679e2782..2e64c684 100644
--- a/piker/calc.py
+++ b/piker/calc.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Handy financial calculations.
 """
diff --git a/piker/data/__init__.py b/piker/data/__init__.py
index 77bcba12..cae1347c 100644
--- a/piker/data/__init__.py
+++ b/piker/data/__init__.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Data feed apis and infra.
 
@@ -80,6 +96,9 @@ async def maybe_spawn_brokerd(
     if loglevel:
         get_console_log(loglevel)
 
+    # disable debugger in brokerd?
+    # tractor._state._runtime_vars['_debug_mode'] = False
+
     tractor_kwargs['loglevel'] = loglevel
 
     brokermod = get_brokermod(brokername)
diff --git a/piker/data/_buffer.py b/piker/data/_buffer.py
index 5e1c3588..64460476 100644
--- a/piker/data/_buffer.py
+++ b/piker/data/_buffer.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Data buffers for fast shared humpy.
 """
diff --git a/piker/data/_normalize.py b/piker/data/_normalize.py
index e1120278..cbda6062 100644
--- a/piker/data/_normalize.py
+++ b/piker/data/_normalize.py
@@ -1,6 +1,23 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Stream format enforcement.
 """
+
 from typing import AsyncIterator, Optional, Tuple
 
 import numpy as np
diff --git a/piker/data/_sharedmem.py b/piker/data/_sharedmem.py
index c256da31..7f90d1ae 100644
--- a/piker/data/_sharedmem.py
+++ b/piker/data/_sharedmem.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 NumPy compatible shared memory buffers for real-time FSP.
 """
diff --git a/piker/data/_source.py b/piker/data/_source.py
index 1df55f53..3ad6d3e8 100644
--- a/piker/data/_source.py
+++ b/piker/data/_source.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Numpy data source machinery.
 """
diff --git a/piker/data/cli.py b/piker/data/cli.py
index 4088f392..7a774fb5 100644
--- a/piker/data/cli.py
+++ b/piker/data/cli.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 marketstore cli.
 """
diff --git a/piker/data/marketstore.py b/piker/data/marketstore.py
index 0c68adf7..d8cb3930 100644
--- a/piker/data/marketstore.py
+++ b/piker/data/marketstore.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 ``marketstore`` integration.
 
diff --git a/piker/fsp/__init__.py b/piker/fsp/__init__.py
index c4b12242..6e56c667 100644
--- a/piker/fsp/__init__.py
+++ b/piker/fsp/__init__.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Financial signal processing for the peeps.
 """
@@ -125,6 +141,7 @@ async def cascade(
         # check for data length mis-allignment and fill missing values
         diff = len(src.array) - len(history)
         if diff >= 0:
+            print(f"WTF DIFFZZZ {diff}")
             for _ in range(diff):
                 dst.push(history[:1])
 
diff --git a/piker/fsp/_momo.py b/piker/fsp/_momo.py
index 934a5e70..13bad728 100644
--- a/piker/fsp/_momo.py
+++ b/piker/fsp/_momo.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Momentum bby.
 """
@@ -136,7 +152,7 @@ def wma(
 
 
 # @piker.fsp(
-#     aggregates=['30s', '1m', '5m', '1H', '4H', '1D'],
+    # aggregates=[60, 60*5, 60*60, '4H', '1D'],
 # )
 async def _rsi(
     source: 'QuoteStream[Dict[str, Any]]',  # noqa
diff --git a/piker/log.py b/piker/log.py
index 218a9fdb..7c8bb798 100644
--- a/piker/log.py
+++ b/piker/log.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Log like a forester!
 """
diff --git a/piker/ui/__init__.py b/piker/ui/__init__.py
index a7fb1052..88771b2d 100644
--- a/piker/ui/__init__.py
+++ b/piker/ui/__init__.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Stuff for your eyes, aka super hawt Qt UI components.
 
diff --git a/piker/ui/_axes.py b/piker/ui/_axes.py
index f567c877..dfce7559 100644
--- a/piker/ui/_axes.py
+++ b/piker/ui/_axes.py
@@ -1,6 +1,23 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Chart axes graphics and behavior.
 """
+
 from typing import List, Tuple, Optional
 
 import pandas as pd
diff --git a/piker/ui/_chart.py b/piker/ui/_chart.py
index 004e6b8f..0caf0d17 100644
--- a/piker/ui/_chart.py
+++ b/piker/ui/_chart.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 High level Qt chart widgets.
 """
diff --git a/piker/ui/_exec.py b/piker/ui/_exec.py
index 55a703b3..b0424c32 100644
--- a/piker/ui/_exec.py
+++ b/piker/ui/_exec.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Trio - Qt integration
 
diff --git a/piker/ui/_graphics.py b/piker/ui/_graphics.py
index b8dff5d4..88193a72 100644
--- a/piker/ui/_graphics.py
+++ b/piker/ui/_graphics.py
@@ -1,6 +1,23 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Chart graphics for displaying a slew of different data types.
 """
+
 # import time
 from typing import List, Optional, Tuple
 
diff --git a/piker/ui/_interaction.py b/piker/ui/_interaction.py
index 444dfeda..af5bcec3 100644
--- a/piker/ui/_interaction.py
+++ b/piker/ui/_interaction.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 UX interaction customs.
 """
diff --git a/piker/ui/_signalling.py b/piker/ui/_signalling.py
index 66a5bf1c..dbb4f467 100644
--- a/piker/ui/_signalling.py
+++ b/piker/ui/_signalling.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Signalling graphics and APIs.
 
diff --git a/piker/ui/_style.py b/piker/ui/_style.py
index 98db4bb2..23a3ac09 100644
--- a/piker/ui/_style.py
+++ b/piker/ui/_style.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Qt UI styling.
 """
diff --git a/piker/ui/cli.py b/piker/ui/cli.py
index 74a3cae3..0b2422da 100644
--- a/piker/ui/cli.py
+++ b/piker/ui/cli.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 """
 Console interface to UI components.
 """
diff --git a/piker/watchlists/__init__.py b/piker/watchlists/__init__.py
index 707c602f..7448a5c2 100644
--- a/piker/watchlists/__init__.py
+++ b/piker/watchlists/__init__.py
@@ -1,3 +1,19 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 import os
 import json
 from collections import defaultdict
diff --git a/piker/watchlists/cli.py b/piker/watchlists/cli.py
index 7ed089d1..3d657348 100644
--- a/piker/watchlists/cli.py
+++ b/piker/watchlists/cli.py
@@ -1,3 +1,18 @@
+# piker: trading gear for hackers
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 """
 Watchlist management commands.
diff --git a/setup.py b/setup.py
index db505cfd..4f8818f5 100755
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 # piker: trading gear for hackers
-# Copyright 2018 Tyler Goodlet
+# Copyright (C) 2018-present  Tyler Goodlet (in stewardship of piker0)
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by