The notes I would have wanted at fifteen.
Long form pieces on shipping production systems, scaling SaaS, hiring engineers, AI integration, and the engineering decisions behind Yashveer Labs.
799 posts · page 9 of 34
- DevOps, Deployment, Infrastructure
Kubernetes for Startups: When It Makes Sense, When It Does Not
Kubernetes is real infrastructure for real scale. Here is how to know if you are there yet.
7 min read
- Cross Platform and Mobile Development
Kotlin Multiplatform vs Flutter vs React Native: A Real Comparison
Three serious cross-platform options for mobile in 2026. Here is how to choose between them without guessing.
8 min read
- Backend, APIs, and System Design
Kafka in 2026: When You Need It and When You Do Not
Kafka is powerful, but most startups reach for it before they need it. Here is how to decide.
7 min read
- Security, Auth, and Compliance
JWT Best Practices in 2026: What Has Changed
JWT implementation mistakes from 2019 are still shipping in 2026. Here is what the current best practices actually are, what has changed with algorithm recommendations, and the common pitfalls that create security vulnerabilities.
6 min read
- Hiring Developers, Freelancers, and Agencies
Junior Developers Who Outperform Seniors: How to Spot Them
Some junior developers outperform seniors within six months. It is not luck and it is not always obvious in an interview. Here are the signals that predict exceptional growth before the résumé justifies the hire.
6 min read
- Backend, APIs, and System Design
JSON Columns in Postgres: When They Make Sense
JSON columns in Postgres are genuinely useful for flexible, semi-structured data. They are also frequently misused as a shortcut to avoid schema design. Here is when to use them and when to use normalized tables instead.
6 min read
- SaaS Architecture and Scaling
Job Failure Recovery: How Good SaaS Companies Sleep at Night
Every background job will fail eventually. The companies that sleep at night are the ones that built failure recovery into the system from day one, not as an afterthought when something broke in production.
6 min read
- Security, Auth, and Compliance
ISO 27001 for Engineering Founders: A Practical Reading
ISO 27001 looks like a compliance bureaucracy but reads like an operational checklist for running a secure organization. Here is what engineering founders actually need to understand before starting the certification process.
6 min read
- Cross Platform and Mobile Development
iOS TestFlight vs Internal Testing: A Comparison
TestFlight and Apple's internal testing tools serve different purposes at different stages of mobile development. Here is when to use each, what the review implications are, and how to run a clean beta program.
6 min read
- Business Automation and Ops
Invoicing Automation: Stripe Invoicing, Chargebee, Custom
Invoicing is one of the last things SaaS teams automate and one of the highest-leverage operations improvements available. Here is when to use Stripe Invoicing, when Chargebee earns its cost, and when to build your own.
6 min read
- SaaS Architecture and Scaling
Internal Admin Tools: Build vs Buy vs Retool
Every SaaS needs internal tools. The question is whether to build them, buy a platform like Retool, or use a lighter alternative. Here is the decision framework that saves engineering hours without creating tool debt.
6 min read
- Security, Auth, and Compliance
Insecure Direct Object References: The Bug Founders Underestimate
IDOR vulnerabilities let attackers access other users' data by changing an ID in a URL or API request. They are simple to introduce and expensive to miss. Here is how to find and prevent them.
6 min read
- Performance Optimization
INP: The New Core Web Vital Most Teams Are Failing
Interaction to Next Paint replaced First Input Delay in 2024 and it is harder to pass. Most teams have not caught up. Here is what INP measures, why it matters, and how to fix the common failure patterns.
6 min read
- Comparisons and Vendor Decisions
Inngest vs Trigger vs Temporal for Background Jobs
Temporal is powerful but heavy. Inngest and Trigger are lighter but cover most use cases. Here is how to decide which background job tool fits your stage and complexity requirements.
6 min read
- Comparisons and Vendor Decisions
Inngest vs Hatchet vs Trigger.dev: Async Job Platforms Compared
Three strong async job platforms with meaningfully different architectures. Here is how Inngest, Hatchet, and Trigger.dev compare on developer experience, reliability, and production fit for SaaS teams.
6 min read
- DevOps, Deployment, Infrastructure
Infrastructure as Code: Terraform vs Pulumi vs CDK
Terraform, Pulumi, and CDK all solve the same problem differently. The right choice depends on your team's language preferences, cloud targets, and how much you trust HCL. Here is a practical breakdown.
6 min read
- DevOps, Deployment, Infrastructure
Incident Severity Levels: A Practical Definition
Severity levels are the vocabulary your team uses to decide how fast to move and who to wake up. Here is a practical framework for defining them in a way that actually gets used during incidents.
6 min read
- Security, Auth, and Compliance
Incident Response for Startups: A Playbook
A startup does not need an enterprise incident response program. It needs a simple, documented process that prevents the chaos that happens when something breaks at 2am and nobody knows who does what.
6 min read
- Startup Technical Strategy
Implementation Services: The Forgotten SaaS Revenue Line
Most SaaS companies leave implementation revenue on the table because they treat it as overhead. Here is the case for building it as a product and the practical approach to doing it without burning out your engineering team.
6 min read
- Performance Optimization
Image Optimization at Scale: AVIF, WebP, Responsive Images
Images are the largest contributor to page weight on most web products. Here is the format selection, responsive image, and delivery strategy that cuts load time without manual work.
6 min read
- Backend, APIs, and System Design
Idempotency Keys: A Pattern Every Senior Engineer Should Master
Idempotency keys are a small implementation with an outsized impact on system reliability. Here is the pattern, the edge cases, and the production pitfalls that most introductions skip.
6 min read
- SaaS Architecture and Scaling
Idempotency in API Design: Why It Matters More Than You Think
An idempotent API is one that handles repeated requests gracefully. Building it in from the start is far cheaper than retrofitting it after your first double-charge incident.
6 min read
- AI Integration and Vibe Coding Rescue
Human in the Loop Design: The Pattern Behind Trustworthy AI Features
AI features that users trust are rarely fully autonomous. They are designed with human checkpoints at the moments where the cost of an AI error is high. Here is the pattern and how to apply it.
6 min read
- MVP Development and Startup Builds
How to Write a Product Requirements Document Without Being Technical
A PRD written by a non-technical founder can be better than one written by an engineer if it focuses on the right things. Here is what to put in, what to leave out, and how to make it useful from the first page.
6 min read
More than blog posts.
The Labs folder has the experiments themselves. The Systems folder has the stack and architecture. The Journey folder has the timeline. Pick whichever pulls you.