Building custom software used to require a computer science degree and weeks of agonizing over syntax errors. That barrier is rapidly dissolving before our eyes, allowing intuition to take the driver’s seat over technical implementation. I just saw this incredible post from an AI professional that proves exactly how accessible coding has become. This expert built a fully functional, AI-powered spreadsheet app in just two hours using Google AI Studio. By leveraging Gemini 3 Pro and Nano Banana, the creator didn’t just make a mockup; they built a working prototype that challenges how we think about productivity tools.
The Era of Vibe Coding
The core concept behind this project is something the author refers to as “vibe coding.” This is a fascinating shift in development philosophy. Instead of writing code line-by-line from scratch, the creator used an intuitive approach to guide the AI, effectively translating a “vibe” or a mental image directly into a functional application. The goal wasn’t to replicate Excel or Google Sheets feature-for-feature, which would be a massive undertaking. Instead, this innovator focused on solving a specific problem: integrating tailored AI functions directly into a grid interface.
This approach allows for rapid prototyping of “crazy ideas” that big tech companies might take years to implement. By using Google AI Studio, the expert was able to bridge the gap between imagination and execution almost instantly. It demonstrates that the future of software might not be about one app that does everything for everyone, but rather millions of micro-apps built by individuals to suit their exact workflows.
Native AI Functions in the Grid
What makes this prototype truly stand out is how the LinkedIn user implemented AI as native spreadsheet functions. We are all used to static formulas for sums and averages, but this tool introduces dynamic generation directly into the cells. The author created a suite of commands that treat AI generation just like any other data manipulation.
For example, the function =AI(“prompt”, cell_or_range) allows for general queries without leaving the grid. But it gets more specific with utility functions. The creator included =TRANSLATE(“lang”, cell) and =PROOFREAD(cell), which fundamentally changes the editing workflow. Instead of copying text out to a chatbot, waiting for a response, and pasting it back, you can simply drag a formula down a column to process hundreds of rows instantly. This kind of batch processing for creative tasks is a massive efficiency boost that standard interfaces usually lack.
Visuals Meets Data
I was blown away when I saw that this wasn’t limited to text. This savvy professional integrated image generation capabilities right alongside the text data using Nano Banana. In the demo, the author showed how they uploaded a half-completed storyboard template and used the app to fill in the blanks visually.
They implemented an =IMAGINE(cell_with_prompt) function to generate new images from scratch based on text descriptions in adjacent cells. Even more impressive is the =CHANGE(“prompt”, image_cell) function, which allows for editing existing images directly within the spreadsheet structure. This transforms the humble spreadsheet from a ledger for accountants into a powerful design tool for creatives. It allows users to manage the logic of a storyboard or project in the grid while simultaneously generating the assets required to visualize it.
Bespoke Solutions Over Generic Software
This project highlights a crucial insight for the future of work. As the post’s author notes, the point isn’t to replace fully built software entirely, but to tackle very specific challenges that broad market tools ignore. This is about personalization at scale.
The creator emphasizes that “vibe coding” is about bringing unique ideas to life. If you have a specific workflow, like generating storyboards, organizing localized content, or managing complex creative assets, you no longer have to wait for a SaaS company to build a feature for you. You can build the tool yourself in a morning. This innovator suggests that by 2026, this capability will reshape our reality, making us less dependent on rigid software ecosystems and more reliant on fluid, self-made solutions.
⚠️ A Note on Limitations
While this is exciting, we have to remain realistic about the current state of technology. The creator is clear that this is a prototype and not a total replacement for robust platforms like Excel.
Legacy spreadsheet software handles massive datasets, complex pivot tables, and enterprise-grade security that a two-hour prototype simply cannot match. The stability of a “vibe-coded” app might fluctuate, and it relies heavily on the API costs and availability of the underlying models like Gemini or Nano Banana. Think of this as a specialized power tool for specific creative tasks rather than the foundation for your company’s entire financial reporting system.
🛠️ The Custom Functions List
Here is the breakdown of the specific functions this industry pro built into the app:
- =AI(“prompt”, cell_or_range) An all-purpose function for general AI queries and content generation.
- =TRANSLATE(“lang”, cell) Instantly converts selected text into the target language.
- =PROOFREAD(cell) Automatically revises grammar and spelling for the referenced cell.
- =SHORTEN(“word_count”, cell) Condenses text to a specific length, perfect for fitting content into strict layouts.
- =IMAGINE(cell_with_prompt) Generates a brand new image using the Nano Banana model based on a text prompt.
- =CHANGE(“prompt”, image_cell) Edits an existing image within the cell based on new instructions.
This experiment proves that the line between using software and creating software is blurring fast. I highly recommend checking out the original post to see the video demo of these functions in action!