First try app packaging : librechat - issue with postgresql extention (pgvector)

[nebulon]

So looks like the application code needs to be adjusted further. I guess we have to see if both extensions can be made to work in parallel. So lets keep this as a feature request.

[nebulon]

We have managed to add the pgvector extension next to pgvectors. So far things are looking good, but we have to do more testing so we don't break other apps using postgres at the moment. But I am hopeful we can get this done with the next Cloudron release.

[Valexico]

Wow thanks @nebulon . I think it would have been necessary one day or another with the current AI hype.

By the way I'd be glad to share my "cloudron packaging prompt engineering" techniques some when. I'll make a second try with another app, I am thinking appsmith

[canadaduane]

This is awesome progress @Valexico! Did pgvector make it in to the base Cloudron release, and were you able to then connect LibreChat's DB up?

BTW I'm very interested in this right now because Open WebUI (the only chat frontend currently supported by Cloudrain AFAIU) recently changed their license to something that is no longer open source (by OSI definition).

[Valexico]

Hi @canadaduane
I think I did have a working app at the end but not 100% features. And then I didn't had time (and interest) to finish the setup
If somebody is interested I can share my past work but I guess litellm have change quite a bit since

[canadaduane]

I have a working setup, based on @Valexico 's work here:

github.com/canadaduane/librechat-cloudron
https://github.com/halecraft/librechat-cloudron

The package has been updated to the latest version of LibreChat 0.7.8, and I fixed a few minor wrinkles such as OIDC login, write access to the public dir, and postgres support. I haven't yet tested it with all of the providers (this requires access keys in the .env file).

[marcusquinn]

@canadaduane Amazing work, well done, and thanks @Valexico, too!

[girish]

@canadaduane great stuff! Is there any packaging issues to be aware of? Can you also attach some LICENSE to your work and we can then look into publishing it in the App Store.

[canadaduane]

Thanks @girish! I've added an MIT license. Also, I tested with a basic OPENROUTER_KEY and it seems to work well. I'm not aware of any issues at this time.

[canadaduane]

@Valexico is the MIT license ok with you also?

[Valexico]

@canadaduane
Yes no problem

[girish]

Thanks, cc @vladimir.d . We will take a look .

[firmansi]

It seems the package is not shipped with RAG API ?

[nebulon]

The package does have pgvector extension, that should work, however I am not sure I understand how the app needs to be configured for RAG API and the local vectordb. Does anyone have upstream docs for that? I can only find https://www.librechat.ai/docs/configuration/rag_api

[luckow]

more or less the same question here -> https://forum.cloudron.io/topic/14037/libcrechat-postgresql-pgvector

[firmansi]

@nebulon the documentation for RAG API can be found in https://github.com/danny-avila/rag_api

As seen that the pgvector can't be used if the RAG API not installed and running. This RAG API is somehow critical part, if it's not running then the librechat can't have capability that openwebui has for files upload, processing files to embedding model and so on

[nebulon]

I see, so this is actually another project which needs to be bundled together with librechat or as a separate app.

This one is using pgvector, not librechat itself!

(will also move the thread here to the librechat category)

[LoudLemur]

@Valexico hey there! Trying this is awesome and thank you so much for putting your ai skills towards packaging.

I came here to offer congratulations on having LibreChat packaged, but to hear you have stated an ai cloudron packaging initiative is just fantastic. I am very glad you are here and thanks for your efforts.

[Valexico]

This post is deleted!

[Valexico]

Hi @LoudLemur
Thanks

For those who want to dig "AI assisted packaging", here is how I proceeded

• I use Zed Editor which has a nice prompt library tool allowing prompt nesting (prompts in prompts. Sins Zed last "agentic" update, you need to use what they call "text thread" to have this feature/behaviour
• I have a main big prompt with all main specificities of packaging (Cloudron documentation mainly)
• I have smaller prompts about addon to be loaded only when needed
• And then I made specific prompts loading target app source files, and the same for example of packaged apps to guide the AI

I did this in 2024. This could be largely improved in 2025 with more agentic behaviour to let the AI fetch the context it needs