NectArray blog
Notes from the work
What we have learned building software and AI agents for clients, running their marketing, and teaching people to get hired in data.
Agentic AI
Jev in LangChain: a decision model for the choices your agent makes
TypeSafe AI's Jev answers typed questions with probabilities instead of writing text. What it is, where it beats an LLM, and how to use it from LangChain and LangGraph.
26 September 2026 · 7 min read
Agentic AI
What an AI agent development company builds, and how to hire one
An AI agent is a model that can call your tools. What a development partner should deliver, what a first agent costs, and the questions that separate real builders from demo makers.
25 September 2026 · 5 min read
Agentic AI
AI agent, chatbot or automation: which one your business needs
Three tools that get sold under the same name. How to tell them apart, what each is good at, and a quick test for picking the cheapest one that does the job.
24 September 2026 · 4 min read
Software
How much custom software development costs in India in 2026
Rough price bands for websites, internal tools, apps and AI features, what pushes a quote up, and how to read one line by line before you sign.
23 September 2026 · 4 min read
Software
How to choose a custom software development company: 12 questions
The questions to ask before you hire a software development company, what a good answer sounds like, and the red flags that should end the call.
22 September 2026 · 4 min read
Software
Custom software or off the shelf: when bespoke is worth paying for
Most businesses should start with a SaaS tool. Here is how to spot the point where custom or bespoke software starts saving more than it costs.
21 September 2026 · 4 min read
Academy
Data science course with placement: how to check the promise
Placement guarantees are the most searched and least explained part of data science courses. What the terms usually mean and the eight things to check before you pay.
20 September 2026 · 4 min read
Academy
Data analytics or data science: which course gets you hired first
The two roles overlap less than the course brochures suggest. What each job does all day, what it asks for, and which one to aim at first.
19 September 2026 · 4 min read
Academy
A 12-week Python and SQL roadmap for your first data job
Week by week: what to learn, what to build, and what to skip so that you reach an interview with work you can defend.
18 September 2026 · 3 min read
Marketing
Digital marketing for a small business: where the first budget goes
A plain plan for spending a small monthly budget: Google Business Profile, search, one social channel and paid ads, in the order they usually pay back.
17 September 2026 · 4 min read
Marketing
Hiring a social media marketing agency for a small business
What a social media agency should do for a small business, what it should report every month, and the contract terms worth pushing back on.
16 September 2026 · 3 min read