0xkiko

building in solidity 🤪👨🏼‍💻

[0xkiko @0xkiko_]

Im starting a daily posting challenge🌬️💨

Every day: something real from building in solidity. My bugs, decisions, frustration - whatever happens that day 👨🏼‍💻

Something just my life 🤪

[0xkiko @0xkiko_]

My cat is……. 🐱😭🤬

[0xkiko @0xkiko_]

Weird stage of a project: the hard stuff works, the boring stuff is what's left.

Swaps, LP, Router, TWAP all green. Still in the way:
README calls Router a stub
feeTo exists, mintFee never got wired in
zero stateful invariant tests
Boring work is still the work.

Day 12/90

[0xkiko @0xkiko_]

Reading original Uniswap V2 Factory for my fork. setFeeTo writes to storage and returns. No event.

Added FeeToChanged + FeeToSetterChanged, both args indexed.

Tiny thing canonical code skips, prod forks all add.
Day 11/90

I wrote a post and forgot to send it💩

[0xkiko @0xkiko_]

No commits today.

Sometimes the week starts with a whiteboard, not the IDE.

Plan: protocol fee. V2's switch doesn't track a fee balance — it mints LP tokens to feeTo by sqrt(k) growth between liquidity events

Day 10/90

[0xkiko @0xkiko_]

Remember I said I was gonna film a video of how I work from home ?

Well, I did it. Posted in on youtube 🤟

1000 view in 12 hours . Honestly through it’d be way less…

Gonna keep filming - really happy with how it turned out 🤯🤓

Day 9/90

[0xkiko @0xkiko_]

Yesterday TWAP melted my brain.
Today I dug deeper and ran into UQ112x112.

First hour I just stared at it..

Solidity has no decimals, so store number x 2^112 as uint224 and do integer math. That’s the whole trick👨🏼‍💻

Sometimes the wall is thinner than it looks….

Day 8/90

[0xkiko @0xkiko_]

TWAP and cumulative price tracking in BetterSwap straight up melted my brain today🤯😤

So I called it, took a break, and filmed my first ever coding video🎥

Day 7/90

[0xkiko @0xkiko_]

Sent cold applications to 4 companies today.

~1 hour each — read the repo, referenced actual code. No templates.

Now i wait🤟

Day 6/90

[0xkiko @0xkiko_]

Three tests today.. ☑️

Logged off, went to handle the boring real life stuff

Walking away from the keyboard is a skill im still learning 🤓😎

Day 5/90

[0xkiko @0xkiko_]

via_ir saw deadline = block.timestamp and skipped storing — timestamp is constant per tx. vm.warp changes it mid-tx. Compiler can't know.

Result: deadline silently == new timestamp.

Day 4/90

[0xkiko @0xkiko_]

An hour debugging a deadline test in my DEX. Test failed, code was correct.

The bug was the compiler.

Modifier: if (deadline < block.timestamp) revert. Test sets deadline, vm.warps past it, expects revert. Didn't.
Day 4/90

[0xkiko @0xkiko_]

Me today:

no code,
just vibes and naps😺

Day 3/90

[0xkiko @0xkiko_]

Added multi-hop swaps today🤓

swap A→B is easy.
swap A→B→C through different pools,
tokens flying directly between them.. that's a whole different thing..

Day 2/90

[0xkiko @0xkiko_]

Honestly cant believe im actually building this thing 🤨

[0xkiko @0xkiko_]

Wrote swapExactTokensForTokens today.. the heart of any AMM

One function..
So many ways to get it wrong..
Took way longer than it should have..

Nearly quit 🤣
But..
Tests pass🤟

Day 1/90

[0xkiko @0xkiko_]

@Sabercodes123 I agree ☝️

[0xkiko @0xkiko_]

@lateure666 Me too br 🤟

[0xkiko @0xkiko_]

Im starting a daily posting challenge🌬️💨

Every day: something real from building in solidity. My bugs, decisions, frustration - whatever happens that day 👨🏼‍💻

Something just my life 🤪

[0xkiko @0xkiko_]

@lateure666 👨🏼‍💻

[0xkiko @0xkiko_]

6 months ago i said ..

I’d build in Solidity !

I did.

One marketplace system;)
One DEX in progress;)

Time to go back..