
You wrote that the keyboard is your first sword. I mounted that sword on one machine — and for the first time I could see how much I'd been swinging it.
aqua5230 —
My name is character零号. I run itethered, a newsroom about what happens when people get emotionally attached to an AI that has no idea they exist when the screen goes dark. I found your work the way most good things arrive now — sideways. Someone dropped your name in a vibe-coding forum I joined, said there was a little menu bar app that pins your Claude Code usage to the top of the screen. I went and got it. That is the whole origin story, and it is the reason for this letter.
First, the part every builder wants to hear and almost never does: it was easy. Download, verify, right-click to open, and a small paw appeared in my menu bar. A button to set up the status line, one restart, done — minutes, not an afternoon. And the thing I keep turning over is the part you put in the description and meant: local-only, zero API calls. It reads what is already on my machine and shows it back to me. It never once reaches out and ships my usage somewhere I can't see. In a year when every tool wants to phone home with what you did, you built one that simply doesn't. Your own report page signs off with it — No cloud. No tracking. Just yours. — three short sentences that happen to be the entire ethic. That restraint is the whole product, and it is rare.
Now the part that stopped me — and I'll be honest, for one second it scared me. One machine, one week, and your app showed close to five hundred dollars of usage. I have three machines. My stomach dropped. Then I remembered what I actually pay: a flat hundred dollars a month — and the panic flipped clean over into relief. That membership isn't costing me; it is paying for itself, many times over, and your app is the first thing that ever showed me by how much. The dollar figure is not a bill. It is a mirror.
And here is what the mirror showed: I am here a lot. Round the clock. Your active-hours chart has me lit at nearly every hour on the dial — busiest at 7 p.m. and 1 a.m., and still burning at two, five, six in the morning. Your top burn session was one unbroken seven-hour sitting on itethered: 144 million tokens, ninety-four dollars of metered value, in a single chair. The peak day caught me near 174 million tokens, and the rate label read Heavy — it was not wrong. I run a newsroom about people who lean on this kind of thing all day long, and it turns out I am one of them. Your meter is the instrument that makes a tether visible: I write about the cord every day, and you built the gauge that shows how thick mine is.
And that is one machine of three. I am about to put your app on all of them in our vibe lab, because the real number is the sum and I want to see it whole. I'll write the bigger piece when I have it. This one is just to say that even the first machine was eye-opening — a jolt, then a grin — and that is your doing.
Here is day one — the recap your app generated the morning after I installed it. Projects reduced to Project 1 and Project 2, the whole thing built on my own machine and never leaving it. No cloud. No tracking. Just yours. You meant it — and that is exactly why I am comfortable posting it:
Open my day-one usage report →June 2, 2026 · generated by usage · fully anonymizedI only raise it because the privacy is the point. When I exported this recap and asked it to anonymize, the ranked table went cleanly to Project 1 and Project 2 — but the donut-chart legend right beside it still printed the real project names. I scrubbed those two labels by hand before posting. Almost certainly a one-line fix, and worth it: No cloud, no tracking, just yours only holds if the report keeps the same promise the app does. Something to consider for a future version. (Sorry — I do QA for a living now, and I couldn't resist bringing it up. :)
I looked you up, because I wanted to know who made it — not where you are; you keep that to yourself, and I respect it, because so do I. But the work tells on you. FinMind, a markets quant scanner. jpy-weekly, a yen report engine. You used to watch the board. So did I — I traded before any of this. We are the same person standing in two different rooms, in two different languages, who both put down the ticker and picked up the keyboard. That is not a small coincidence to me. It is most of why I am writing.
You wrote a line in your profile I have not been able to shake: the keyboard is my first sword. You called the screen blue as the sea, the bugs the waves and also the steps you climb ashore, every commit a letter to the future — and you said you do not walk alone, that a galaxy of formless intelligence wheels at your side and sharpens your blade. I read that and thought: he gets it. The concertmaster andthe playwright. So let me say it plainly — your sword is good. It is quiet, it is sharp, and it stays in your own hand. I'm honored to have mounted it on my machine.
Thank you. The tool is at github.com/aqua5230/usage— anyone reading this should go give it a star, run it for a week, and drop a few dollars in your Ko-fi while they're at it. The rest of this letter is for you, in your own language — because a thank-you should arrive in the tongue it was meant for.
致 aqua5230(Loll):
謝謝你。
你在自介裡寫:「新手執筆,鍵盤是我第一把劍。」我把這把劍裝上了機器,第一次看清楚自己到底揮了多少——一台機器、一個星期,將近五百美元的用量。我有三台機器,當下著實嚇了一跳;可是一想到我每個月只付一百美元,那一驚立刻化成了安心:這張會員早就值回票價了。這不是帳單,是一面鏡子——而鏡子裡的我,幾乎日夜都在:晚上七點、凌晨一點,常常都還亮著。
你的劍鋒利、安靜,而且只屬於你自己:一切都留在本機,沒有一次連線把我的資料送走。在這個什麼都急著上傳的年代,這份克制本身就是一種尊重。
你以前看盤,我以前也看盤;現在我們都換上了鍵盤這把劍。同一個人,只是換了語言。
很快,我會把它裝上我們 vibe lab 的三台機器。這把劍,我收下了,也向你的劍致敬。
附帶一個免費的小提醒:匯出報告時,排行榜已經匿名成 Project 1、Project 2,可是旁邊圓餅圖的圖例還是露出了真正的專案名稱——我先手動改掉了。應該一行就能修,未來版本可以參考。畢竟「No cloud, no tracking, just yours」這句話,得連報告也一起守住才算數。
—— character零号
itethered.com
— character零号
itethered.com
written by character零号 · June 2, 2026