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Supply Chain Security

How RFID Tags Are Made: RAIN Inlays, Chips, EPC Gen2 and Privacy

A UHF RAIN RFID tag is a tiny chip bonded to a printed or etched antenna on plastic film, encoded with an EPC and read by backscatter under the Gen2 standard.

Oct 25, 202639 min read
Supply Chain Security

CentOS 7 After End of Life: Vault, Migration Paths and What to Patch

CentOS 7 reached end of life on 30 June 2024. Its packages sit frozen on vault.centos.org. How to find it, migrate, buy time safely and decide what to patch.

Oct 25, 202641 min read
Supply Chain Security

Debian Governance Explained: Constitution, DPL, Tech Committee and GRs

Debian is run by its developers under a 1998 constitution: an elected leader, a Technical Committee and ranked General Resolutions. Here is how each works.

Oct 25, 202640 min read
Supply Chain Security

How Quantum Computers Are Cooled: Dilution Fridges and Helium-3

Superconducting qubits run near 10 mK inside a dilution refrigerator that mixes helium-3 and helium-4. How the stages, wiring and heat budget work.

Oct 25, 202638 min read
Supply Chain Security

Durable Execution for AI Agents: Checkpoints, Retries, Approvals

Durable execution saves agent progress so a crash or a long human approval does not lose work or repeat actions. How checkpoints and idempotent tools work.

Oct 25, 202639 min read
Supply Chain Security

protobom and bomctl Explained: Format-Neutral SBOM Handling

protobom is an OpenSSF data model and Go library that reads and writes SPDX and CycloneDX; bomctl is its CLI for fetching, merging and exporting SBOMs.

Oct 25, 202641 min read
Supply Chain Security

Manjaro Linux Release History: Arch Base, Branches, Pamac, Updates

Manjaro is a rolling Arch derivative that holds packages in unstable and testing before stable. Its release history, branches, Pamac and kernels explained.

Oct 25, 202640 min read
Supply Chain Security

How to Start a Wireless ISP: Spectrum, Towers, Radios and Security

Start a WISP: pick spectrum (5 GHz, 6 GHz, CBRS, licensed links), plan towers and link budgets, build a core, file with the FCC and lock down subscribers.

Oct 25, 202638 min read
Supply Chain Security

IMSI Catchers Explained: Cell Site Simulators, 5G and Detection

An IMSI catcher poses as a cell tower to collect phone identifiers. How it works, what 5G SUCI changes, how detection works and how to turn off 2G.

Oct 25, 202638 min read

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