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I build software and small digital products. Creator/Co-creator of - https://nitter.gq/t.co/lSTFFLY0A6 - https://nitter.gq/t.co/K3mT9sBhcw - https://nitter.gq/t.co/KrFxfu0pCG

Slovakia
Joined May 2026
Photo by dkolisek (@dcoolisek)Photo by dkolisek (@dcoolisek)Photo by dkolisek (@dcoolisek)Photo by dkolisek (@dcoolisek)Photo by dkolisek (@dcoolisek)Photo by dkolisek (@dcoolisek)Photo by dkolisek (@dcoolisek)Photo by dkolisek (@dcoolisek)Photo by dkolisek (@dcoolisek)Photo by dkolisek (@dcoolisek)
Introducing BubuKits 🐶 Small, native Mac apps built to solve simple everyday problems. Presentation remote. File renaming. Image resizing. And more tiny tools on the way. And 50% of our proceeds support dog shelters. → bubukits.com
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need one smaller pdf? you don't need an app 😄 preview: file > export > quartz filter > reduce file size. save a copy, check small text after. if you also need merging or reordering: bubu pdf, $4.99 once, no trial. guide 👇 bubukits.com/compress-pdf-ma…
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question for mac users 😄 which small job do you still do in a browser tool? pdf, image resize, renaming files, restarting apps... i read every answer. solo developer here 🐶
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i didn't want an app updater that guesses. bubu update shows the source next to each app (sparkle, homebrew, app store, github) and says so when it can't verify an update 🐶 $4.99 once, no subscription bubukits.com/update/?utm_sou…
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app frozen? try the free way first 😄 cmd + Q. if it stays stuck: option + cmd + esc, pick the app, force quit. wrote the steps down, plus when a menu bar restart button is worth it and when it isn't 🐶 bubukits.com/restart-frozen-…
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same image on instagram, linkedin and x? three sizes, three crops 🙃 bubu resize has presets for instagram, facebook, linkedin, youtube, x, pinterest and tiktok. pick one, adjust the crop, export. jpeg, png or heic, nothing uploaded. $9.99 once bubukits.com/resize/?utm_sou…
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quiet month. back to building 😄 bubukits: 7 small native mac apps. pay once, no subscription. all kits $24.99. i'm a solo developer and i haven't figured out how to get people to see them yet. posting here daily for 2 weeks to see what happens. bubukits.com/?utm_source=x&u…
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dkolisek retweeted
4 years of AI progress
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dkolisek retweeted
Get ready.
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Built a little thing this weekend 👀 Meonpixs — create an event, share a QR code, and let everyone upload their photos. No app. No accounts. Just scan & upload. 📸 Let’s see where this goes. meonpixs.com/
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I got tired of checking Mac apps one by one, so I built Bubu Update 🐶 It scans your apps, checks trusted sources like Sparkle, Homebrew and the Mac App Store, and shows available updates in one clean place. No account. No subscription. $4.99 lifetime. bubukits.com/update/
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heyoo devs on @X , what product are you most proud of building so far? I’ll go first 😊 for me it’s actually 2 from the BubuKits family: Bubu Remote bubukits.com/present Bubu Rescue bubukits.com/rescue show me yours 👇
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looks like ChatGPT just got another serious upgrade 👀 GPT-6 Astra is here. now I really need to find harder problems to give it 😅
This is GPT-6 Astra. Anything you can do on a computer, Astra can do for you. Fast.
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dkolisek retweeted
This is GPT-6 Astra. Anything you can do on a computer, Astra can do for you. Fast.
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1st customer for Bubu Rescue!! 😭🔥 built it last night, shipped it this morning. 7th Mac app in BubuKits, but the first one anyone actually paid for. $2.59 earned, and of course 50% goes to a dog shelter 🐶❤️ small win, huge motivation 💪 keep building. never give up. right now, the money will go to this shelter: schronisko.fundacjaanimalsi.…
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I just posted Bubu Rescue on r/MacApps and every upvote genuinely helps us get seen there. If you’ve been following BubuKits, please 🤍 give it a quick upvote here: reddit.com/r/macapps/comment… And as a thank you, BUBUTEST100 is open again for the next 10 people who want to try the full BubuKits bundle for free 🤝
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hi @x, i built Bubu Rescue. pick the frozen app from the menu bar, restart only that one, keep everything else open. that’s it. bubukits.com/rescue/
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dkolisek retweeted
Europe might finally have a serious AI contender. Multiverse Computing just launched Quasar 438B. → #1 European model on Artificial Analysis → 43 Intelligence Index → Mistral Medium 3.5: 30 → 500-token response in 15.3s → strong results in long-context reasoning + agentic coding The US and China still dominate the AI race. But Europe is starting to look a lot more interesting. Would you actually try a European model instead of Claude / GPT / Gemini? multiversecomputing.com/reso…
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Need a pricing sanity check 😄 Would you pay these prices for small native Mac apps, one-time, no subscription? • Bubu Update, $1.99, finds outdated Mac apps • Bubu PDF, $4.99, edit/compress/convert PDFs • Bubu Sort, $4.99, automatically sorts files • Bubu Present, $5.99, phone as a presentation remote • Bubu Rename, $7.99, batch rename files • Bubu Resize, $9.99, resize/crop/convert images Or $24.99 for All Kits, every current + future Bubu app, lifetime. Curious what you think: A) Too expensive B) Pretty fair C) Actually cheap D) I wouldn’t pay for small Mac utilities anyway 😄
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