nowfound

Life & fun · July 17, 2023

A Ruby gem for generating migration from mermaid er diagram

Hi HN and great ruby hackers, I have just published a ruby gem for generating migration files from markdown files written in Mermaid.js. You can write down some ER diagrams on markdown files and then generate migration files via running single command. I'd really love to get feedbacks and or problems.

A Ruby gem for generating migration from mermaid er diagram launched on July 17, 2023 with 5 votes, #1,978 of 4,347 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 3 years on.

Visit github.com ↗Alternatives

What it does

Generate migration files from your mermaid ER diagrams - 38tter/mergration

Does a similar job

all alternatives →
  • Ferrite – Markdown editor in Rust with native Mermaid diagram renderingJan 2026 · github.com · ▲241

    Ferrite: Fast Markdown/Text/Code editor in Rust with native Mermaid diagrams Built a Markdown editor using Rust + egui. v0.2.1 just dropped with major Mermaid improvements: → Native Mermaid diagrams - Flowcharts, sequence, state, ER, git graphs - pure Rust, no JS → Split view - Raw + rendered side-by-side with sync scrolling → Syntax highlighting - 40+ languages with large file optimization → JSON/YAML/TOML tree viewer - Structured editing with expand/collapse → Git integration - File tree shows modified/staged/untracked status Also: minimap, zen mode,…

  • Programmatically Generate Diagrams for GitHub Readmes2019 · github.com · ▲220

    🧜‍♀️ RESTful rendering pipeline for generating sequence and UML diagrams using Mermaid for Markdown docs (Diagrams as a Service) - Schachte/Mermrender

  • Ruby gem for parsing Mermaid syntax, an extension of kramdown2023 · github.com · ▲6

    Hi HN, I've just made a ruby gem for parsing Mermaid syntax, and it's an extension of kramdown parser. I'd love to get feedbacks and or problems you encounter.

  • Visualize Your Rails App to ER Diagram Automatically2018 · holistics.io · ▲104

    Learn how to use this simple free tool dbdiagram.io to visualize your Rails ERD diagram, made by Holistics

  • Line9 – A Mermaid rendering engine with its own layoutAug 2026 · line9.ai · ▲87

    Line9 is a new rendering engine for Mermaid flowchart diagrams that aims to remove the need for manual adjustment of layout. Mermaid is a popular text-based language for describing multiple types of diagrams. Several Mermaid rendering engines already exist. Most, like the original mermaid.js, use Dagre or ELK graph drawing libraries to automatically lay out their diagrams. I’ve used Mermaid for the past four years but often recreated my flowcharts in a diagram editor so that I could modify the layout to something that better suited my needs. Use Line9 when you want an automatic flowchart…

  • Beauty DiagramMay 2026 · beauty-diagram.com · ▲98

    Mermaid online live editor that beautifies flowcharts and activity diagrams — also supports PlantUML and draw.io. Live preview, one-click beautify, clean SVG / HD PNG export.

More life & fun this month

the category →

Source: Show HN post ↗

Launched alongside, July 2023

the whole month →
  • Clustr▲1,526

    The reality check for your crypto portfolio

    Commerce · 2023 · clustr.io

  • Workout.lol – a web app to easily create a workout routine▲993

    Hey everyone, I here is a small open-source project I've been working on lately. I'd love to hear your thoughts and improvement ideas :) GitHub: [github.com/Vincenius/workout-lol](https://github.com/Vincenius/workout-lol)

    Dev tools · 2023 · workout.lol

  • HN
    Hacker News user blogroll▲937

    I saw this [0] pretty cool thread by user revskill, and wanted a quicker way to search through it, but also to keep them all in one place so I can read them at my leisure whenever I get time. Right now is like 60 lines of Ruby using Nokogiri, but I will certainly look into it further down the line and improve the list. There's a cronjob checking the thread every 12 hours but I will eventually shut that down and it will become static after that. There are some really awesome blogs in there. I really recommend going through the list, it made my day. [0] "Could you share your personal blog…

    Life & fun · 2023 · dm.hn

  • Lazy▲928

    One ⌘ shortcut to capture anything straight to Notion

    AI · 2023 · lazy.so

  • Anytype - Public Beta▲907

    Anytype is built on the open-source AnySync protocol: a local-first protocol based on CRDTs. Users of Anytype can create spaces - graph-based databases with modular UI. Each space has unique access rights. Today, Anytype's beta is in single-player mode. Multiplayer mode, which will support local-first collaboration between multiple users, will be launched in the first half of 2024. Anytype fulfils the seven ideals of local first software from here - https://www.inkandswitch.com/local-first/ , our team felt these things are important to all of us: • No spinners: your work…

    Commerce · 2023 · anytype.io

  • n8n 1.0▲786

    Workflow automation for technical people

    Dev tools · 2023 · n8n.io