Introducing Postimy: Your Personal Content Assistant for Social Media

Hello, I’m excited to finally share what I’ve been working on: Postimy.

Postimy is your virtual assistant for all things social media. It helps you generate posts that actually sound like you, learning your tone, voice, and style over time. Whether you’re trying to stay consistent on LinkedIn or Twitter, schedule posts across platforms, or brainstorm content ideas, Postimy is here to make it easier.

You can join the waitlist here if you want to try it early.

Why I Started Postimy

I’ve always struggled with the consistency part of social media. I have ideas, I know what I want to say, but actually sitting down to write content every few days? That was always the problem.

Then it hit me! What if I could automate the content creation process but still make it feel authentic?

There are already tons of AI writing tools out there, but most of them generate stuff that feels… generic… They don’t sound like you. They don’t evolve with you. And most importantly, they don’t help you build a personal brand in a meaningful way.

That’s what I’m aiming for with Postimy.

Who Is It For?

Postimy is built for:

1. Founders & indie hackers trying to build in public

2. Creatives and professionals growing their audience

3. Freelancers wanting to showcase expertise

4. Anyone who’s tired of figuring out what to post

Whether you’re building a product, a personal brand, or just want to stay relevant on social, Postimy helps you write consistently, without sounding robotic or generic.

How I Started Using It (And What Happened)

Before turning this into a web app, I started with a simple CLI tool that used OpenAI to generate LinkedIn posts based on my background and industry. I’d just run a command, and out came a few post options tailored to my style.

To my surprise, they weren’t just “good enough”, they were actually getting me results. I started seeing more engagement, more connections, and even more DMs from potential recruiters, founders and some others peeking at my profile (thanks to LinkedIn’s profile viewers section).

That’s when I knew I was onto something.

How It Works (Right Now)

Currently, Postimy has:

1. A Next.js frontend (for user interface, onboarding, dashboard)

2. An Express.js server (handling post generation, user data, auth)

3. Uses OpenAI’s API to generate posts based on user background and goals

4. Simple scheduling logic and a content calendar to help users stay consistent

The idea is to start lean but scalable enough to get value from day one, while setting the stage for personalization and smarter content generation.

What’s Next: Learning You

Here’s where it gets fun. I want Postimy to become more than a content generator… I want it to learn how you think.

Here’s a breakdown of what I’m working on:

1. Voice + Style Adaptation: As you generate more posts, Postimy starts recognizing your tone, sentence structure, emoji usage, word choices, even preferred themes, and uses that to make future posts sound more like you.

2. Smart Onboarding: You’ll be able to set tone preferences (casual, formal), emoji habits, platform focus, and more (still not so sure about other preferences) so Postimy gets your voice right from day one.

3. Content Memory (RAG): I’m planning to store generated posts as embeddings in a vector database (e.g., pgvector or Pinecone). When generating new content, the system retrieves similar past posts to make each one context-aware.

4. Custom ML Pipeline: Eventually, I’ll be spinning up a Python Docker microservice to handle more advanced ML tasks, like Hugging Face-based embedding, tone scoring, and maybe even fine-tuning on user data.

5. LangChain (Possibly, still unsure): For better chaining of user context → memory retrieval → structured prompt → post generation, I’m exploring LangChain as an orchestration tool — or building a custom version of it if needed.

All of this is to ensure Postimy grows with you, becoming more accurate, more personal, and more useful over time.

Want to Try It?

If you’re tired of staring at a blank text box trying to figure out what to say online, Postimy can help.

Join the waitlist to be part of the early access group.

Thanks for reading. If you’ve ever tried building your dev tools to solve your own problem, I’d love to hear your story.

Let’s build better tools for ourselves.