Uxie

PDF reader app designed to revolutionise your learning experience!

🚀 Developed with features like:

📝 Annotation, note-taking, and collaboration tools
📚 Integrates with LLM for enhanced learning
💡 Generates flashcards with LLM feedback

Originally started as a hackathon project which I ended up winning 🥇!Uxie has since evolved with even more exciting features.
I'd love for you to give Uxie a try and share your valuable feedback.

Built using

Nextjs Frontend and Serverless api routes
tRPC For typesafe apis
Zod For validation
Typescript For type safety
Tailwind CSS For CSS
React Query for data fetching, optimistic updates
React Hook Form for form handling
Shadcn UI + Radix UI For UI components
Supabase As the database
Prisma As the ORM
Blocknote for note taking
Uploadthing for storing pdfs
Next Auth for authentication
React-pdf-highlighter for pdf rendering,highlighting
Vercel AI SDK, Langchain for AI responses and streaming, generating flashcards + evaluating them
Pinecone DB for storing embeddings of pdfs
Fireworks AI for LLM
Huggingface Model for generating Embeddings
Liveblocks for realtime collaboration
Nuqs for type-safe search params

Features:

Note taking, later download the note as markdown
Summarise, ask questions about the PDFs
Chat and collab with other
custom blocks in editor
highlights block which on click takes you to that highlight on the doc.
AI-powered text autocompletion
Craft simple flashcards to test your knowledge, answer questions, and receive instant feedback through AI evaluation.

Bugs

add max length for all input boxes chat, flashcards, feedback, notes.
for area highlights, create a custom component with:

imagelink stored on editor is base64 one => possible soln: store it as base64 to the notes, then in the same addhighlighttonotes function upload it to uploadthing, and then update the url of the block in the notes. => would prob need to create a custom block for this, else there'd be a noticable lag. => issue fixed!
and the yellow leftborder which takes to the highlight on click

implement ratelimit using redis kv => checkout upstash
profile how long pinecone takes for retrieval of embeddings, and maybe look into upstash embedding storage for this (or pgvector?)
add download flashcards in csv,anki format ( apkg format), also add dl notes in pdf format (html2pdf lib should work)
better error,loading pages => abstract this logic to hook / component
editor loads with empty data before the data is loaded.
see if u can see all the users (also typing status for chat: refer) in the liveblocks room, (and display it at top)
fix .tippy-arrow appearing on screen at all times => added a temp fix. still appears when hovered over the pdf reader
abstract userIsOwner and userHasAccess (either collab or owner) logic. progress: => api called experimental_standaloneMiddleware but
```
1. it requries the types for the entire input, the only way seems to be putting any for the rest => losing typesafety for the whole route
2. most times data is returned from this, so query will also run twice
```
solution seems to be => create separate helper functions (take where, select, etc as params: use relevant prisma types to match each.)
remove the empty block => TypeCellOS/BlockNote#631

New ideas

use background runner or something and do long-polling
see if the liveblocks stuff can be replaced w. sockets refer
- for now -> If no collab then fetch from DB, else fetch from liveblocks. Also, Always store notes to DB
Run the seogets script
figure out saving the first page, and doing ocr (maybe locally)

Pinecone Setting up guide