Building Maildroppa with GPT Codex + Claude Code. Claude is fast; GPT Pro thinks deep; they review each other. In weeks: 35-language React app, revisions, health scoring, Rspamd spam check, backend refactor for A/B testing. Heaven + hell: speed is addictive, pressure is brutal.
Marcus Biel
@marcusbiel.bsky.social
Rockstar Dev turned into SaaS founder, working on Email Marketing for small businesses. Tweets: email marketing, startups, coffee & survival as a dad, ADHD, 🇺🇦 https://maildroppa.com
Is it just my bubble or is the entire social media now exclusively talking about AI and the next secret best ever prompt 🤪
🚀 Maildroppa update is live After 4 months of modernization focused on stability & clarity, we just shipped: 🗣️ UI in 35 languages 🧩 Central Footer Builder 🌍 Subscriber-facing text language 🔁 Undo / redo in automations Built on a fully modernized codebase. Feedback welcome 💬
AI won’t kill SaaS—it’ll kill trivial “A→B” utilities. Real software is years of decisions, edge cases, and domain knowledge. AI can write code, but you must specify. Without deep understanding, prompts produce polished junk.
AI won’t kill SaaS—it’ll kill trivial “A→B” utilities. Real software is years of decisions, edge cases, and domain knowledge. AI can write code, but you must specify. Without deep understanding, prompts produce polished junk.
🚀 Maildroppa update is live After 4 months of modernization focused on stability & clarity, we just shipped: 🗣️ UI in 35 languages 🧩 Central Footer Builder 🌍 Subscriber-facing text language 🔁 Undo / redo in automations Built on a fully modernized codebase. Feedback welcome 💬
🎉 Just hit 1337 followers — call me 1337! For the non-nerds: 💻 1 = L 💻 3 = E 💻 3 = E 💻 7 = T That’s right… LEET, short for ELITE 😎
During a React Flow rebuild, edges went wild. Screenshots + AI (ChatGPT 5 Pro, Claude, Juni Ultimate) didn’t help. I wrote: "node top-left, another to the right; put a + at their midpoint." Instant fix. Lesson: images can mislead—precise text wins.
really miss GPT 4.5 for writing and o3 for coding. It's weird how Sam Altmann made this big statements of how super smart GPT 5 was -when it's not. Super slow is all that it is. Sonet 4.5 got quite nice though! What are your experiences?
Prospect: “Mailchimp is too pricey. Do you have nonprofit pricing or pay‑as‑you‑go?” Me: “You can try all features for free.” Prospect: “Great—can you do a 1:1 concierge demo instead?”
a cartoon character is holding a sign that says away .
ALT: a cartoon character is holding a sign that says away .
media.tenor.com
I finally get to share: Maildroppa’s #zapier integration is live :) 🚀 We’re even sitting next to Figma in the new apps feed 🙌 Create/update subscribers, manage tags & segments, run searches & counts—all for free. zapier.com/apps/maildro...
🚀 Early access: Maildroppa × Zapier Automate subscriber workflows (create/update, tags, segments) and trigger your campaigns via tags. Want in? DM your Zapier email with “ZAPIER”. Beta perks: priority support + setup templates. #Zapier #EmailMarketing
Do you know someone who knows about Zapier CLI? I am failing to create a nested zapier action - to create a list of list of elements, as seen in the screenshot.
2-week verdict on Claude Max: gorgeous code 😍, zero context 🤪. It invents APIs and gushes that you’re brilliant even when you’re wrong. GPT-O3’s code may be less pretty, but it has much more context and just works—and it’s far less of a yes-bot. Back to GPT 🤠
Just received a cold email so bad it made me laugh and cry 😂😭
Running Google Ads with tracking? It takes FIVE separate Google accounts, all wired together. Absolute nightmare and an insult to marketers. Full rant → www.linkedin.com/posts/marcus...
Whoever said setting up Google Ads was “easy” clearly never tried to… | Marcus Biel
Whoever said setting up Google Ads was “easy” clearly never tried to actually do it. First you need an ordinary Google account. Then you create a Google Ads account on top of that. Great—except nothin...
linkedin.com
🚀 I’m available for a new freelance contract! Expert in Startups, Email Marketing, Java, Spring Boot, Quarkus, Micronaut, Cloud, DevOps & AI. Happy to help you build clean, scalable systems. DM me or forward my details. #Java #freelance #DevOps #Cloud #AI
Goodbye, my love, we had so many good years. Missing you.
I get many calls on my website to "Y29uZmlybS" which is base64 encoded for "confirm". Does anyone else see such behavior? Why? Who? What to do against it? It screws my Plausible stats :(
Just published what might be my best article on email marketing ever! Wrote it 3 times with some GPT help—but the core idea and insights came directly from me. GPT just turned weeks into days. Check it out 👇 maildroppa.com/academy/emai...
Just published what might be my best article on email marketing ever! Wrote it 3 times with some GPT help—but the core idea and insights came directly from me. GPT just turned weeks into days. Check it out 👇 maildroppa.com/academy/emai...
Just realized that our babysiter was born 7 years after I got my a-levels. Does this mean I am old? 😱
At the age of 45 I finally realized why the card game Uno is called Uno 🙈