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Engineering Blog

Technical insights from the people building Replit.

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20265 entries
JEAH

By Jon Eide and Aadil Hussaini

9m read
Cover artwork for the article “AI adoption starts with truth”.

AI adoption starts with truth

AI adoption is limited by trust. A user who gets burned by a confidently wrong answer will double-check the next one, eventually routing consequential work around the system entirely. Once that happens, AI remains a tool at the edges rather than infrastructure at the center… useful, but never trusted with the workflows where its value compounds. Before a company can benefit from more capable agents, those agents need a reliable way to know what the company considers true.

DFPZZLMC

By Daniel Furman, Peter Zhong, Zhen Li, and Michele Catasta

12m read
Diagram comparing a one-off human shipping decision with a continuous evaluation system that learns from production and ships improved agents.

Closing the loop: Evaluating and improving Replit Agent at scale

Most Replit Agent users start with an idea. They describe the goal in natural language — without a repo, test suite, or chosen framework — and expect the agent to turn it into a functioning app. The result might be a website, slide deck, mobile app, several connected artifacts, or something else entirely.

20255 entries
VF

By Victor Fuentes

4m read
Cover artwork for the article “Using Tvix Store to Reduce Nix Storage Costs by 90%”.

Using Tvix Store to Reduce Nix Storage Costs by 90%

For the past few years, Replit has been using Nix to serve packages/dependencies and provide consistent development environments to our users. Nix on Replit allows users to have access to a large number of packages and libraries that can be seamlessly integrated into a user's project.

SKDHJZ

By Szymon Kaliski, Devin Halladay, and Jonathan Zhou

6m read
Cover artwork for the article “Introducing Workflows”.

Introducing Workflows

With Workflows, you can easily save your development processes and organize them as a sequence of Tasks. Instead of having to repetitively type commands into your shell and remember them, Workflows provide an intuitive interface to configure your frequently used commands and execute them with the click of a button.