openreplay VS dark

Uncover frustrations, understand bugs and fix slowdowns like never before with OpenReplay — an open-source session replay tool for developers. Self-host it in minutes, and have complete control over your customer data. Check our GitHub repo and join the thousands of developers in our community.

- Optimize user experience: use insights to refine and improve your app’s usability.

Interested? For more details, you can check out the GitHub repo [0] or documentation [1]:

[0] https://github.com/openreplay/openreplay or documentation

[1] https://docs.openreplay.com/en/rn-sdk/

Hey HN,

For anyone who uses session replay tools to debug, monitor, or analyze user journeys, this feature might come in handy. OpenReplay — the self-hosted session replay tool that helps developers troubleshoot web apps faster — now supports tabbed browsing.

*Here's how:*

1. Capture and replay user sessions that span across multiple browser tabs, all within a single recording.

2. OpenReplay's tracker communicates across browser tabs, ensuring accurate tracking of each tab, even when duplicated or opened with `window.open` without `_blank`.

3. With "co-browsing", you can watch and support users in real-time and see how they navigate across multiple tabs of your app.

*Why it’s important?*

1. This feature is convenient for developers as it allows them to easily identify bugs by reviewing a complete session in one replay, rather than having to reference multiple recordings.

2. It provides a deeper understanding of the user journey and interactions across multiple tabs in your web app, helping in the comprehension of complex user behaviors and paths.

3. It provides accurate feedback on user tab actions such as opening, switching, and closing tabs, assisting in UX/UI improvements.

Interested? For more details, you can check out the GitHub repo at https://github.com/openreplay/openreplay.

You could maybe get in a scenario where a company rather sneakily changes their license without proper announcement to make usage non-open and billable, but that's pretty rare and bad behavior and that underhandedness may bite them back if it goes to court (I am not a lawyer). That said, it can happen. As an example, see this discussion I opened where the project switched licenses and the maintainers thought it was enough to only really announce this within a 1 hour YouTube video (Rather than their blog or update notes).

OpenReplay would not be typically be considered open source. (Which I have raised with them and have since been blocked from their repos).

How does it compare to OpenReplay ?

> Before deciding on ClickHouse, we were planning to use OpenSearch

You should have tried Quickwit :)

Anyway, sounds like a great project, best of luck!

[1] https://github.com/openreplay/openreplay

[2] https://github.com/quickwit-oss/quickwit

Yes. Darklang was originally in OCaml using js_of_ocaml, and we ported it to F# using Blazor (https://github.com/darklang/dark/tree/main/backend/src/Wasm). It works.

We found that in dotnet 6, the code was much slower, with long startup times and a much bigger download, than in js_of_ocaml. It also had a lot of issues in running in a Webworker, which wasn't the case for js_of_ocaml.

In dotnet 7, the webworker issues are better and AOT is easier, so startup is faster. Download sizes are still bad, and it's still slower than js_of_ocaml.

However, dotnet allows almost any code to run in WASM, which js_of_ocaml had large limitations. This meant a decent chunk of functionality had to be worked around to make separate js vs native targets, which also was a massive pain and took a long time. Dune's virtual targets wasn't ready at the time - I think we were one of the test cases for it.

Why should I use this instead of https://darklang.com/

First it was probably Dark. They made a lot of noise some years ago, but then I never heard of them again (looking at their current website, looks like they moved on to AI now, obviously).

Reminds me of Darklang. Personally, I don't think vendoring cloud services into a language is going to be beneficial. I'm curious how the language deals with vendor updates. Do I have to upgrade the language then? If so, I see a lot conflicts coming from this. Then it comes down to Javascript or HCL, the HCL bit makes me think that the below statement is not as truthy as it is on the surface:

We still don't have all that many users (~100 active), so I'm not sure you'll find an answer here. But we collect that sort of feedback publicly, which might answer your question: https://github.com/darklang/dark/discussions/categories/feed...

I wish I could remember what took me to YCombinator's website on the 10th of October, 2022. That was when I first heard about Wasp and another language called DarkLang. After I learned about Wasp, I was intrigued and curious to know how it works, which led me to join the discord server the next day.

Some languages that try to integrate an HTTP server and a database:

Ur/Web: http://impredicative.com/ur/

Dark (Darklang): https://darklang.com/

There are others in this space I did not assess like Encore, Shuttle, Modal, and Dark. These were not assessed for the sake of time. If you're interested in IfC, I encourage you to take a look at these others.

Oh, finally! I was waiting to build my serverless CRUD webapp in Dark (OCaml + JavaScript and Fsharp?) until they had support for returning negative numbers on a GET request!