CTO @ Measure Studio Writing about Ruby, Rails and other web technologies in my spare time - http://kukicola.io Side project: http://shinygems.devhttps://bsky.app/profile/kukicola.iohttps://bsky.app/profile/kukicola.io/post/3mucfb7hf4224Bought a dedicated workstation for my agents. Second-best purchase I’ve made recently. The air fryer remains undefeated30 Aug 2026 12:27 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mucfb7hf4224https://bsky.app/profile/kukicola.io/post/3mrzq2j2agj2xInstead of shipping something useful this weekend, I redesigned my blog for the hundredth time. Peak developer productivity01 Aug 2026 14:56 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mrzq2j2agj2xhttps://bsky.app/profile/kukicola.io/post/3mptlk32i7m2pMy Ruby ClickHouse client was already faster than the alternatives. I still wasn't satisfied, so I used Fable to push it further. 🧵04 Jul 2026 17:28 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mptlk32i7m2phttps://bsky.app/profile/kukicola.io/post/3mp4mcfkswr2pAnother week, another agent IDE test. This time I was testing www.onorca.dev/ and oh boy, it's good. Simple, fast, and it can orchestrate itself. Definitely sticking with it https://www.onorca.dev25 Jun 2026 14:11 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mp4mcfkswr2phttps://bsky.app/profile/kukicola.io/post/3monrxb42jp2mB2B spam is on a whole new level. Recently I got messages on LinkedIn, WhatsApp and email simultaneously. If that wasn't enough, they called me the next day at 3am because they don't get timezones. 🫠 I wouldn't use their service no matter what.19 Jun 2026 16:42 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3monrxb42jp2mhttps://bsky.app/profile/kukicola.io/post/3mncshgikqb2lThat's the last one for now, I promise https://kukicola.io/posts/dont-let-ai-burn-you-out/02 Jun 2026 14:27 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mncshgikqb2lhttps://bsky.app/profile/kukicola.io/post/3mnadmerdsj2ihttps://kukicola.io/posts/your-websites-next-visitor-is-an-ai-agent/01 Jun 2026 14:56 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mnadmerdsj2ihttps://bsky.app/profile/kukicola.io/post/3mn5qzinefm2fCatching up continues https://kukicola.io/posts/the-review-bottleneck/31 May 2026 14:18 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mn5qzinefm2fhttps://bsky.app/profile/kukicola.io/post/3mn5jvgukcz2kMy first impression of Opus 4.8 - not a big difference compared to 4.7. I probably wouldn't notice if I didn't know it's a new model. Still seems like GPT-5.5 handles backend better31 May 2026 12:10 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mn5jvgukcz2khttps://bsky.app/profile/kukicola.io/post/3mn37ilj3tl2jI wrote 4 articles on my blog this year already, which is 4x more than in the whole of 2025. Here is the first one https://kukicola.io/posts/im-behind-and-i-dont-care/30 May 2026 13:59 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mn37ilj3tl2jhttps://bsky.app/profile/kukicola.io/post/3mn2uhwys5q2tHaven't been here for a while. I focused mostly on X, but from now on, I'll post all my content here as well30 May 2026 10:41 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mn2uhwys5q2thttps://bsky.app/profile/kukicola.io/post/3mbwcyudmss2nWith AI, you can code in any language without knowing its syntax. The "performance vs development speed" trade-off is fading - you can prototype in Go as fast as in Ruby. What happens to developer-friendly languages when every language becomes easy to write?08 Jan 2026 15:41 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mbwcyudmss2nhttps://bsky.app/profile/kukicola.io/post/3mbjt4v6znc2gI asked Opus to write a simple MCP server that would allow to fetch RDS/OpenSearch instance info and their metrics from Cloudwatch. Then, I asked for deep analysis of my existing AWS resources using this MCP. Saved few hundred $/m due to overprovisioned instances. Exiting times!03 Jan 2026 16:25 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mbjt4v6znc2ghttps://bsky.app/profile/kukicola.io/post/3mb3cdn4vz22mI just published a new gem - a high-performance ClickHouse client that uses Native data format and persisted connections (should be faster than all other implementations). Not production tested yet, but if you work with ClickHouse in Ruby, give it a try https://github.com/kukicola/clickhouse-rb28 Dec 2025 21:47 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3mb3cdn4vz22mhttps://bsky.app/profile/kukicola.io/post/3m5p23nwcck2jSmall role update 🚀15 Nov 2025 20:32 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3m5p23nwcck2jhttps://bsky.app/profile/kukicola.io/post/3lfuzruoh222vOne simple line, 30% reduction in test suite execution time :s16 Jan 2025 19:38 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3lfuzruoh222vhttps://bsky.app/profile/kukicola.io/post/3lfdidosip22lFirst blog post of the year! This time it's not ruby related https://kukicola.io/posts/reducing-aws-nat-gateway-cost/09 Jan 2025 20:10 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3lfdidosip22lhttps://bsky.app/profile/kukicola.io/post/3lewch5otck2eI didn't write a single blog post in 2024, so it shouldn't be hard to beat that result in 2025.04 Jan 2025 14:20 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3lewch5otck2ehttps://bsky.app/profile/kukicola.io/post/3lejzv2oe6k2rAnyone using sidekiq with dragonflydb?30 Dec 2024 17:15 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3lejzv2oe6k2rhttps://bsky.app/profile/kukicola.io/post/3lb2zm5gp322sFinally had some time to update shinygems.dev to #hanami 2.2. Went smoothly, although I kept my manual ROM setup. https://shinygems.dev16 Nov 2024 13:45 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3lb2zm5gp322shttps://bsky.app/profile/kukicola.io/post/3lb2zevgopk2sSo, I guess we post #ruby stuff here now?16 Nov 2024 13:41 +0000at://did:plc:rwkffy63ssrvmvmwcxk6t5gd/app.bsky.feed.post/3lb2zevgopk2s