Jiří Koutný

536 posts

Jiří Koutný

Jiří Koutný

@kutny

Katılım Mayıs 2008
152 Takip Edilen629 Takipçiler
Jiří Koutný retweetledi
Tomáš Vranka
Tomáš Vranka@TVranka·
BREAKING: Unikla nova definicia EBITDA na rok 2026.
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Petr Brzek
Petr Brzek@PetrBrzek·
Jsme makali. Posledních pár měsíců bylo náročných, ale už je hotovo. Díky Team.blue bude Macaly brzo jedničkou v Evropě. Naší vizí je, aby Macaly nebylo jen o tvorbě webů, ale aby vám postupně pomáhalo nastartovat celý váš byznys. cc.cz/druhy-startup-…
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Petr Brzek
Petr Brzek@PetrBrzek·
Over the past year, we worked hard on Langtail, but we lacked significant success and growth. It took us 6 months to reach $2k MRR. We tried everything we could, even things we weren't experienced in (like sales outreach). By the end of the year, visible fatigue had set in. At the beginning of this year, we knew we only had 3 months of runway left, and without a major change, it wouldn't work out. We started working on "text to automation," a vibe coding Zapier kind of project. However, after a month of prototyping, we felt it still wasn't reliable enough and lacked a big wow factor. With only 2 months of runway left, we had to act fast. We've experienced these stressful situations many times before, and they've always pushed us to deliver our best performance. We had the infrastructure ready to run generated LLM code. We thought, let's make a better Bolt. At that time, we were using Bolt, and it helped us a lot with generating prototypes and marketing pages. However, I was already very annoyed that key features I needed were missing, which Bolt had been promising for months. We decided to do it ourselves and better. Everyone on the team loved it, probably because web creation is close to all of our hearts. After a month, we had our first functional prototype, which we presented at the E2B hackathon. We received very positive feedback there. It's been 3 months since we started working on Macaly and 9 days since we launched our subscription pricing. In 9 days, we've reached where Langtail took us half a year. Our daily signup count equals Langtail's monthly signup count. We're very happy about this, but at the same time, I realize it's just the beginning, and we need to work even harder. Our team has 5 people; Lovable has 50. We're a bit like DeepSeek among US LLM providers. Not that we're Chinese, but we're trying to do the most with the least. Thank you for your support.
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Jiří Koutný
Jiří Koutný@kutny·
@PetrBrzek Need to add the "speaking head" too to have a "human-like" teacher...
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Jiří Koutný
Jiří Koutný@kutny·
@PetrBrzek The voice assistant could unlock endless new business opportunities: super-personalized English teaching classes, sales pitch training, negotiation practice, and more. What about creating a tool that allows non-tech users to build and monetize such content on Langtail?
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Petr Brzek
Petr Brzek@PetrBrzek·
🎉 Introducing AI Voice Role Playing! 🗣️🤖 Powered by OpenAI's Realtime API, the tech behind ChatGPT's Advanced Voice Mode: ◆ Lifelike AI conversations ◆ Real-time interactions ◆ Immersive experiences 👇 Try it now! Link in thread
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Jiří Koutný
Jiří Koutný@kutny·
@PetrBrzek Wanted to play with it on my iPhone, but, didn't expect you to require an API token :-( I don't have OpenAI token on my iPhone...
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Vladimir Sandera
Vladimir Sandera@VladimirSandera·
@kutny @PetrBrzek Makame na tom. V srpnu planujem nasazovat prvni zakazniky v ramci nove verze naseho AI shopping assistenta pro ecommerce. Jsme old fashioned. Rozhodli jsme se to nejdriv vyvinout a az pak prodavat :)
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Petr Brzek
Petr Brzek@PetrBrzek·
Zkoušel jsem toho novýho asistenta na Rohlíku a za mě docela dobrý. Těšim se až to bude na všech eshopech.
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Petr Brzek
Petr Brzek@PetrBrzek·
@kutny Vim o par startupech co to resi, ale spis jsou ve fazi developmentu.
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Jiří Koutný
Jiří Koutný@kutny·
@paveljasek Dělam trochu něco ve SvelteKit, je to IMHO jednoduché a dost to odsýpá.
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Pavel Jašek
Pavel Jašek@paveljasek·
Jaký byste mi poradili tech stack pro moderní vývoj webu? Prázdninový projekt s vizualizacemi dynamicky z db, k tomu cronové utilitky. Kdysi jsem dělal na LAMPu, takže hlavně PHP, JavaScript, CSS. Zvládnu Python, preferuji prostředí GCP+BigQuery, mám však i klasický hosting. Dík
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Jiří Koutný
Jiří Koutný@kutny·
@PetrBrzek Standard Postgres would be much slower for aggregations and analytical queries (counts, sums) IMHO.
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Petr Brzek
Petr Brzek@PetrBrzek·
@kutny Aggregated analytical data. We are currently using Clickhouse, but I wonder if a regular database would be sufficient for a private cloud installation.
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Petr Brzek
Petr Brzek@PetrBrzek·
From what scale is it more appropriate to use Clickhouse instead of Postgres? I know a couple of companies migrating to Clickhouse, but they were at hyperscale. Most companies are not.
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Jiří Koutný retweetledi
Jan Barta
Jan Barta@absurdtrader·
We live in a time increasingly resembling the second half of the 1930s. I couldn't live with myself with the knowledge I didn't do more to stop another Hitler. In light of the Republican wavering and in memory of Navalny I will give $100 towards FPV drones for Ukr for every RT.
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Jiří Koutný
Jiří Koutný@kutny·
@PetrBrzek Většina SEO lidí řeší eshopy/retail. SEO v B2B je z mojí zkušenosti dost jiná disciplína. Jasně věci jako klíčovka jsou stejný a těma bych doporučoval začít. Z toho si pak udělej mapping "co lidí hledají" <-> "co nabízíme". To bude u vás IMHO celkem crucial.
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Petr Brzek
Petr Brzek@PetrBrzek·
@kutny Popravde jsem nepremyslel nad tim, ze by ten SEO clovek mel byt jeste zamereny na SaaS. Myslis, ze to je podstatny? Me to prislo principialne stejny. V podstate ja mam nejakou vizi jak to delat a tu jsem chtel prodiskutovat s nekym, kdo se tim zivi.
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Petr Brzek
Petr Brzek@PetrBrzek·
Hledám no bullshit SEO člověka s kterým můžu probrat strategii pro Langtail. Znáte někoho?
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Petr Brzek
Petr Brzek@PetrBrzek·
Would you be interested in "Langchain considered harmful" kind of post? I bet HackerNews crew would love it.
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Jiří Koutný
Jiří Koutný@kutny·
@martinsnizek Většina termínů a procesů ve větších firmách vychází z nastavení, že "lidi nechtějí pracovat, tak je donutíme". Výsledkem toho chtějí pracovat ještě méně. Nezmění se to. Ne bez dobrých leaderů týmů, schopných komunikovat problémy. Ne, pokud vedení nezačne více naslouchat.
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Martin Snížek
Martin Snížek@martinsnizek·
Velmi pěkně popsáno, jak striktním lpěním na dodržování termínů ve skutečnosti dovedete týmy k nižším ambicím – a nakonec věci trvají déle než předtím.
Shreyas Doshi@shreyas

As a senior executive, you care a lot about your teams moving fast. So when a team misses its committed launch date, you show great displeasure. You demand more accountability. You make an example out of this team. Other teams see this. They are not stupid. So they learn. And from now on, every single team hits their committed launch dates. You are very happy. I can see it. But my friend, I am so sorry to tell you: You are no longer moving as fast as you were before. Plus, what you ship will no longer be as high quality as before. And over time you start to see this too. You are not stupid. Even though everyone is hitting their launch dates, something has changed. Things seem to be moving slower than before. And you have no idea why. So you call meetings. You set up check-ins. You set up processes. But despite all your efforts, nothing changes. That gnawing feeling that you are no longer moving fast persists. That embarrassment of seeing your teams ship a shoddy experience is all too common now. And you have no idea why. The answer is right there. You are no longer moving fast because of YOUR communication. Instead of creating a culture where teams have intrinsic motivation to move fast — because they are energetic and they care — you started punishing the odd case where a team misses its aggressive target date. And so, by doing that you sent a message to everyone: Don't be very ambitious, because the reward for ambition is punishment. I know that isn't the message you wanted to send. But by doing what you did, it is the only message you will send. 100 times out of 100. What could you have done instead? When that team missed its launch date, you could have sent a positive message instead of punishing the team's leaders. You could have used this opportunity to build & maintain a culture of aggression and ambition. You could have said: "I understand why you missed the launch date. I'd rather that you stay aggressive and sometimes miss the date than being conservative and always hitting the date. I don't want you to stop being aggressive by default. And we want more teams to be like you." At this point, you are either seeing the value of this approach or you are trying to find reasons to reject it. And your reasons are quite flimsy, such as: "But what about launches that have an external commitment?" You are smart. You can figure that one out. But okay, let me spell it out for you: 1. Most launch dates should not be committed externally. So don't commit dates for most launches. 2. A few launches need external commitments (to customers, or regulators, or partners...) 3. For the launches in # 2, sure, commit a conservative launch date that you are almost certain to hit. 4. But even for those, ask the team to devise an aggressive internal target date. It's okay if they slip this date. But it's important to have that aggressive internal target. Why? Because remember Parkinson's Law: Work expands to fill the time allotted for its completion. Have you ever noticed how teams always struggle to hit their launch date, no matter how conservatively they've set them? Yes, that's because of Parkinson's Law. Look, I know it's easy to have dogma around "always hitting dates". Dates are an easy, but incorrect proxy for your teams' velocity, ambition, and energy. Though if you still want to maintain your fascination with hitting all dates, I am not sure I can (or even want to at this point) convince you otherwise. But then I also guarantee that you will spend your entire career managing teams that move slower than they really can and/or ship lower quality products than they really can, and you will spend your entire career setting up check-ins, processes, spreadsheets, and carrots/sticks trying & failing to solve a problem that you created in the first place. Best of luck to you!

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