Blog — page 12 of 38
How to Run a Job Queue Without a Worker Fleet
Most background job setups run idle workers 24/7 to handle work that arrives in bursts. Here's the alternative: Postgres as the queue, a per-job VM as the worker, and nothing running when there's nothing to do.
The best ways to host Langfuse in 2026
Langfuse is easy to run and less easy to run well — it's four stateful dependencies in a trenchcoat. Here's an honest comparison of where to put it, including when self-hosting isn't worth it.
The best ways to host LiteLLM in 2026
LiteLLM's proxy sits in front of every LLM call your app makes, which makes its hosting a latency and availability decision rather than a deployment detail. Here's how the options compare.
The best RunPod alternatives in 2026
"RunPod alternative" means three different things depending on which part of RunPod you use. Here's an honest sort — including the case where the answer is that you don't need a GPU at all.
The best Beam Cloud alternatives in 2026
Beam's pitch is that a Python decorator becomes deployed infrastructure. Alternatives split by whether you're keeping that ergonomic, chasing GPU economics, or need a stronger boundary than a container.
The best ways to host Windmill in 2026
Windmill's server and database are easy to host anywhere. The workers execute whatever scripts your team writes, which makes worker placement a security and capacity decision rather than a deployment detail.
Synthetic Monitoring Is a Hostile Workload: One microVM Per Check
A synthetic check is a scraper fleet wearing a dashboard: real Chromium, arbitrary customer URLs, live login credentials, and timing numbers people page on. Here's why a shared browser pool leaks between tenants, and what changes when every check run gets its own disposable microVM.
Your API Mock Is a Server Running Customer Code
Static fixtures become templates, templates grow helpers, helpers become a scripting engine — and now your mock server executes customer-authored code with a straight face. Here's the per-tenant microVM shape that makes that fine.
CREATE EXTENSION Is dlopen: Sandboxing Untrusted Postgres Extensions
There is no sandbox inside PostgreSQL. `CREATE EXTENSION` on someone else's .so means "run this C as the postgres user, inside my database process" — so the only real boundary is the machine the database is running on.
UFFDIO_ZEROPAGE vs UFFDIO_COPY: Stop Paying RAM for Zeros
A demand-paged microVM restore answers thousands of page faults. If your handler answers all of them with UFFDIO_COPY, you are allocating anonymous pages to store nothing — the single biggest hidden cost in a restore fleet.
The Snapshot-Restore Thundering Herd, Explained
Demand-paged restore from object storage is beautiful until a burst arrives. Then every restore independently range-GETs the same bytes, and you learn what your object store thinks of you.
Vercel Sandbox vs Cloudflare's Sandbox SDK
Both are a sandbox you import as an SDK from a platform you already pay for. So the honest comparison isn't about the sandbox — it's about what each parent platform makes cheap, and whether that's the thing your agent actually needs.
Morph Cloud vs E2B: Fork the Machine or Rent a Session
Both run Firecracker, so "is it a VM" is settled. What actually differs is the primitive on top: Morph sells you a persistent machine you can branch, E2B sells you a disposable execution session with an ecosystem around it.
The Best Webhook Testing and Development Platforms in 2026
Tunnels, request bins, provider CLIs, smee.io, and real ephemeral environments — judged by the actual job: receive it, read the signature, replay it, and prove your handler is idempotent.
How to Benchmark Sandbox Cold Start Honestly
Cold-start numbers are marketing until you define the stopwatch. Here's a rigorous method — where the clock starts and stops, which stages to split out, why p99 is where your users live, and a Python harness you can point at any vendor including mine.
Data Residency for Sandboxes: Every Byte, Including RAM
"We're EU-only" is a claim about every byte, and on a snapshot-based platform the sneaky ones are memory snapshots — a byte-for-byte image of whatever the guest was holding in RAM.
The best AWS App Runner alternatives in 2026
App Runner gets you from a repo to a URL without touching ECS. The complaints are always the same three: the price floor, the cold path, and the moment you need something it does not do. Here is where people go next.
The best DigitalOcean Managed Databases alternatives in 2026
The DigitalOcean managed database is priced like a server and behaves like one. That is fine until you want branching, per-PR databases, or a bill that drops when nobody is querying. Here is the field.
The best Turso alternatives in 2026
People pick Turso for two unrelated reasons: low-latency reads near the user, or a cheap database per tenant. If you know which one you are solving for, the shortlist gets a lot shorter.
The best BrowserStack alternatives in 2026
BrowserStack's bill scales with parallel sessions, and most teams are paying for real-device breadth while using it as a Chrome grid. Here is how to tell which one you need.
The best vector database hosting platforms in 2026
Most RAG applications do not need a dedicated vector database, and the ones that do usually know why. Here is the honest split, and what each hosting option costs you in operational weight.
The best sandbox APIs for Rust AI agents in 2026
You are on rig or the Anthropic HTTP API or 400 lines of your own loop, and something has to run the code the model wrote. Here is how to evaluate a sandbox platform from Rust, and a client that does not embarrass you.
How to deploy a Vite React SPA without a Dockerfile
A Vite build produces a folder of static files. Everything that goes wrong in deploying one comes from treating that folder like a server, or from forgetting that a router needs a fallback.
How to deploy a Streamlit app without Docker
Streamlit runs beautifully on your laptop and then binds to localhost, holds a WebSocket open, and keeps everything in memory. Here is what each of those means once it is behind a URL.