diff --git a/crypto_tax/__main__.py b/crypto_tax/__main__.py
index e69de29..34233c1 100644
--- a/crypto_tax/__main__.py
+++ b/crypto_tax/__main__.py
@@ -0,0 +1,117 @@
+import sys
+import requests
+import fin_depo
+from . import secrets
+from fin_defs import CryptoCurrency, AssetAmount, MPC, Asset, USDT
+from decimal import Decimal
+from collections import deque
+from fin_depo.data import *
+import datetime
+import dataclasses
+
+KUCOIN_CLIENT = fin_depo.defi_kucoin.KucoinDepoFetcher(
+    secrets.KUCOIN_KEY,
+    secrets.KUCOIN_SECRET,
+    secrets.KUCOIN_PASS,
+)
+
+
+@dataclasses.dataclass
+class BoughtAndSold:
+    amount: AssetAmount
+    time_bought: datetime.datetime
+    time_sold: datetime.datetime
+
+@dataclasses.dataclass
+class BoughtAndNotYetSold:
+    amount: AssetAmount
+    time_bought: datetime.datetime
+
+
+def compute_tax(transfers: list):
+    bought_and_sold_for: list[BoughtAndSold] = []
+
+    prices_bought_for: dict[Asset, deque[BoughtAndNotYetSold]] = {}
+    prices_bought_for[MPC] = deque()
+    prices_bought_for[MPC].append(BoughtAndNotYetSold(AssetAmount(MPC, Decimal(100)), datetime.datetime(2000, 1,1,1,1,1,1)))
+    prices_bought_for[USDT] = deque()
+    prices_bought_for[USDT].append(BoughtAndNotYetSold(AssetAmount(USDT, Decimal(100)), datetime.datetime(2000, 1,1,1,1,1,1)))
+
+    def sell(amount: AssetAmount, executed_time: datetime.datetime):
+        print(f'Selling: {amount}')
+        while amount.amount > 0:
+            if len(prices_bought_for[amount.asset]) == 0:
+                raise Exception('Miscalculation: ' + str(amount))
+            partial = prices_bought_for[amount.asset].popleft()
+
+            print(f'Fuck : {amount} - {partial.amount}')
+
+            amount_covered_by_partial = min(partial.amount, amount)
+            amount -= amount_covered_by_partial
+            new_partial_amount = partial.amount - amount_covered_by_partial
+
+            print(f'  => {amount}  ({new_partial_amount}')
+
+            # Re-add partial
+            if new_partial_amount.amount != 0:
+                new_partial = BoughtAndNotYetSold(new_partial_amount, partial.time_bought)
+                print(f'  => new partial: {new_partial}')
+                prices_bought_for[amount.asset].appendleft(new_partial)
+                del new_partial
+
+            # Add FIFO like
+            bought_and_sold_for.append(BoughtAndSold(amount_covered_by_partial, partial.time_bought, executed_time))
+
+            del partial, amount_covered_by_partial
+
+
+    for transfer in transfers:
+        print(transfer)
+        # Buy
+        if output := transfer.output:
+            print('Buy')
+            if output.asset not in prices_bought_for:
+                prices_bought_for[output.asset] = deque()
+            prices_bought_for[output.asset].append(BoughtAndNotYetSold(output, transfer.executed_time))
+        del output
+
+        # Sell
+        if _input := transfer.input:
+            print('Sell')
+            sell(_input, transfer.executed_time)
+        del transfer, _input
+
+        if True:
+            print('Bought for:')
+            for asset, prices in prices_bought_for.items():
+                price_sum = sum((p.amount for p in prices), start=AssetAmount.ZERO)
+                sys.stdout.write(f' - {asset.raw_short_name():10} ({price_sum}): ')
+                for price in prices:
+                    sys.stdout.write(str(price.amount.amount))
+                    sys.stdout.write(', ')
+                    del price
+                sys.stdout.write('\n')
+                del asset, prices
+
+
+    print('-'*80)
+
+
+    for bas in bought_and_sold_for:
+        print(f'{bas.amount}  ({bas.time_bought} ----> {bas.time_sold})')
+
+
+    for c, l in prices_bought_for.items():
+        print(c)
+        print(l)
+
+def main():
+    """Main function."""
+
+    TRANSFERS = list(KUCOIN_CLIENT._get_double_registers())
+    compute_tax(TRANSFERS)
+
+
+if __name__ == '__main__':
+    main()
+
diff --git a/crypto_tax/secrets.py b/crypto_tax/secrets.py
new file mode 100644
index 0000000..53bda57
--- /dev/null
+++ b/crypto_tax/secrets.py
@@ -0,0 +1,12 @@
+from secret_loader import SecretLoader
+
+secret_loader = SecretLoader()
+
+PBC_ACCOUNT_ADDRESS = secret_loader.load('PBC_ACCOUNT_ADDRESS')
+
+KRAKEN_KEY = secret_loader.load('KRAKEN_KEY')
+KRAKEN_SECRET = secret_loader.load('KRAKEN_SECRET')
+
+KUCOIN_KEY = secret_loader.load('KUCOIN_KEY')
+KUCOIN_SECRET = secret_loader.load('KUCOIN_SECRET')
+KUCOIN_PASS = secret_loader.load('KUCOIN_PASS')