Add pseudocode

src/staking.cairo

@@ -0,0 +1,31 @@
+#[starknet::interface]
+trait IAirdrop<TContractState> {
+    fn stake(
+        ref self: TContractState, length: u64, amount: u128
+    ) -> u32; // returns stake ID
+    fn unstake(
+        ref self: TContractState, id: u32
+    );
+
+
+    // owner only
+    // set_curve_point
+}
+
+#[starknet::component]
+mod staking {
+    use cubit::f128;
+
+    #[storage]
+    struct Storage {
+        stake: LegacyMap::<(ContractAddress, u32), (u128, u128, u64, u64)>, // STAKE(address, ID) → (amount staked, amount veCARM, start date, length of stake)
+        curve: LegacyMap::<u64, f128> // length of stake > CARM to veCARM conversion rate (in cubit f128) 
+    }
+
+    // impl, etc, embeddable_as StakingImpl...
+    // fn stake()
+    // fn unstake(){
+        // here, keep in mind the special case where the user has veCARM and no corresponding entry in the stake storage var.
+        // what id to use? to be decided
+    //}
+}