February 19, 2026
Serial drama, literally
Show HN: Provisioner per-board sidecar for serial access, flashing, and bring-up
Tiny “bench buddy” for stubborn boards — tinkerers intrigued, bargain hunters wary
TLDR: A new “Provisioner” tool promises to babysit flaky boards during early boot, serving files and controlling the console so they finally start up. Early commenters praise the idea for painful bring‑up moments but question whether it’s geared toward labs rather than low‑budget hobbyists, pitting convenience against cost and complexity.
A scrappy solo dev just dropped Provisioner, a plug‑in “bench buddy” that sits beside your single‑board computers and takes charge when everything else is on fire. It grabs the chatty hardware cable (the serial line), gives you remote access, serves up boot files, and even ships a tiny helper program inside the startup image to flash and report status. Translation: when Wi‑Fi is flaky and storage is half‑baked, this thing claims it’ll still talk to your board and push it across the finish line. GitHub link lives here: github.com/alessandrocarminati/provisioner.
The early commentariat mood? Curious but cost‑conscious. One RISC‑V tinkerer said it would’ve been a lifesaver while wrestling a finicky VisionFive 2 Lite, then immediately wondered if it’s aimed more at labs than hobby budgets. That tension — “lab‑grade magic vs. cheap hacks” — is the opening vibe. Folks chuckled at the post’s self‑aware line that “the serial cable is the only thing telling the truth,” because anyone who’s ever coaxed a tiny board to boot knows that pain.
Meanwhile, the dev insists it’s not trying to replace giant lab systems; it’s “afternoon‑deploy” gear for home labs, bring‑up benches, and shared spaces. With features like multi‑viewer consoles, on‑the‑fly stream filters, and plug‑in power control, readers are split between “finally, less chaos” and “do I really need another box?” The thread is young, but the theme is set: simplicity and price vs. capability and control — and whether this friendly sidecar earns a permanent spot on the bench.
Key Points
- •Provisioner is a per-board sidecar for SBC bring-up that owns the serial console and exposes access over SSH.
- •It serves boot artifacts (initramfs, rootfs, kernel) via TFTP/HTTP and supports in-band serial file transfer using gzip/base64 and XMODEM.
- •Features include scriptable boot interaction, serial logging, lightweight access control, and pluggable power control (SNMP PDUs, ESP8266/Tasmota).
- •An embedded minimal init runtime, goinit, runs in initramfs to handle flashing, artifact retrieval, and state reporting over serial.
- •Provisioner provides a pluggable routing system and filter subsystem for multiplexing observers and mitigating ANSI Device Status Report issues.