juraj

I rebuilt an old QR code app using only LLMs that need no credit card. It opened and mostly worked, and it showed me how wide the gap is between free models…

I looked inside Google Play services to find out what exactly they do. Here is what they give you on GrapheneOS, what it costs, and which settings make it cost less.

A friend told me Bitcoin can’t go up 100x because there isn’t enough electricity to mine it. I think hashrate follows price, not the other way around, so I ran the numbers…

Four wrapped bitcoins and six stablecoins, each compared to what it tracks. cbBTC and USDC sit at par, WBTC trades a bit below BTC, and LUSD trades above the dollar.

How a routstr node can forward your AI request with its own API key without reading your prompt, and you can talk to the provider without seeing that key. The whole act…

A Routstr node can now resell AI inference without reading your prompts or answers, and without giving you its API key. It needs no enclaves, only the provider’s TLS certificate, zero-knowledge proofs…

I put a prompt-injection gate in front of my AI agent and benchmarked five detectors on 1,947 public items. The best caught 91% of attacks at about 4% false positives, including instructions…

Speed: 1×1.25×1.5×1.75×2× · Download MP3 (7 MB)Audio version of the article (about 11 minutes). Synthetic voice. Full write-up and audits available here. On 26 August 2026 the Core Lightning maintainers told operators…

I switched from Apple to GrapheneOS and I’m trying Omarchy. Why the idea of “privacy but inconvenient” versus “convenient but no privacy” doesn’t hold up.

A follow-up to the hardware attestation piece: what happens when the same chip-level attestation that locks down your phone gets pointed at AI inference instead — Venice, Phala, and what I found…