๐ฃ Tune in for #LoFi/42 on Tuesday at 8 AM PDT (October 27).
1๏ธโฃ Steven @liechti_dev: Rust, iroh and CRDTs in a native workspace
2๏ธโฃ Kushagar @KushagarGoel: Bring local-first to your backend
3๏ธโฃ Schalk Venter: Local-first without the commitment
๐งต๐
๐ Introducing XOR
An open source, multimodal Jev-like decision model. Being developed with data sovereignty & enterprise grade in mind.
โถ Multimodal: great for text + visual classification
โท Much bigger 260k context window
โธ Qwen3.6 based
huggingface.co/juspay/xor
โโโ See it in action
Future Devs will do everything but development
It was about doing QA as LLM has written code, now suddenly everyone is interested in finding how good agent is performing on not sure what metrics
Looking for online HR courses ๐๐
Have any one of you made any mistakes??
Then if My agent for once give wrong answer why is it a bad agentโน๏ธ
In defence it learned from human data itself๐
Our brain will think about something when you try to not think about it
When i say โnot appleโ you will still think about apple๐
Does this happens with LLMs as well??
#aiPsycology
As Samay Raina you say
Ek clean comic kabhi harami nahi ban sakta but ek harami kabhi bhi clean comic ban sakta h
But we say
Ek vibecoder kabhi bhi Developer ni ban sakta but ek Dev kabhi bhi vibecoder ban sakta h ๐
#developer
๐๐ ๐บ๐ฎ๐ฑ๐ฒ ๐บ๐ฒ ๐๐ต๐ฒ ๐บ๐ผ๐๐ ๐ฝ๐ฟ๐ผ๐ฑ๐๐ฐ๐๐ถ๐๐ฒ ๐๐ป๐ฝ๐ฟ๐ผ๐ฑ๐๐ฐ๐๐ถ๐๐ฒ ๐๐ฒ๐
Last few month I have made more than 20 projects
Still it doesn't feel productive
Solve hard problems because building same state of art repeatedly doesn't help anybody but LLM giants
#AI
With AI everywhere i feel more like QA than a Developer
Find cases ask claude to fix and repeat๐๐
Most engineering decisions are guesses
You donโt know
โข future traffic
โข real bottlenecks
โข user behavior
Yet people over-engineer to โfuture-proofโ
Good engineers donโt
They pick the simplest thing
that can change later
#Engineering
Anyone can build a โcomplexโ system
Add Redis, Kafka, microservices, Kubernetes
Your architecture diagram looks amazing
6 months later:
Youโre debugging distributed failures and tracing logs
Good engineers donโt just ask: Can we build this?
They ask: Do we want this?
#Engineer
AI can design a system in seconds:
Microservices
Redis
Kafka
Vector DB
Event-driven architecture
Looks impressive.
But it doesnโt know your users, traffic, or team size.
The real skill now isnโt knowing tools.
Itโs knowing when not to use them.
#Engineering
๐ฅ Fastest way to fail a system design interview:
We used Kafka.
Interviewer: Why?
If you canโt explain the bottleneck, you donโt understand the tool
Great answers sound like:
File store โ slow writes โ indexing โ Postgres.
Donโt list tools.
Show reasoning.
#SoftwareEngineer
Youโre not learning engineering but vocabulary
Knowing:
โข Microservices
โข Kafka
โข RAG โ Understanding systems.
If you remove the tools, can you explain
โขWhy itโs structured that way
โขWhat trade-offs exist
โขWhat breaks under load
Buzzwords feel smart.
Depth feels painful
You donโt need Redis.
If your app has:
โข 3 users
โข 20 requests/day
โข โน0 revenue
You donโt need:
โข Caching
โข Microservices
โข Event streaming
You need a file.
Start simple.
Scale when it hurts.
Complex โ Smart.
#Engineering
Consistency or Availability.
Pick two. Suffer quietly.
Then Google Spanner showed up and said:
โWhat if we engineer around the speed of light?โ
Global ACID. Atomic clocks. Planet scale.
Did it beat distributed systems or just outspend physics? ๐
#DistributedSystems #Database
๐ ๐ฎ๐๐ฏ๐ฒ ๐๐ ๐๐ฎ๐ ๐บ๐ ๐บ๐ถ๐๐๐ฎ๐ธ๐ฒ, ๐๐๐ ๐๐ฎ๐๐ป'๐ ๐๐ฎ๐น๐น๐๐ฐ๐ถ๐ป๐ฎ๐๐ถ๐ป๐ด
Ask 2 humans:
โIs eating non-veg wrong?โ
Youโll get 2 answers.
Same with LLMs.
Vague prompt โ many perspectives.
Clear context โ useful output.
Prompting โ typing.
Itโs setting context.
Your database is a very expensive to-do list
If you use Cassandra / ScyllaDB, youโre not on a B-Tree.
Youโre on an LSM Tree.
Not a data structure, a strategy:
โข write to memory
โข flush sorted files
โข merge later (compaction)
Write fast. Clean later.
#Databases #SystemDesign
How a hash map in Haskell is different from a hash map in Python
In Python, updating a hash map mutates it in place.
In Haskell, maps are immutable.
Create a new version without copying everything
How? ๐๐ฎ๐๐ต ๐๐ฟ๐ฟ๐ฎ๐ ๐ ๐ฎ๐ฝ๐ฝ๐ฒ๐ฑ ๐ง๐ฟ๐ถ๐ฒ
Only the updated branch is copied



