Rex, the Superlogical terminal: persistent sessions, native Tailscale and tabs on the left

By Javi and Rafa · Café con Codely

Superlogical is the company of Mitchell Hashimoto, the creator of Ghostty, Terraform and HashiCorp. Its first product is Rex, a terminal for local and remote sessions. The invitations arrive in waitlist order. Rafa gets his invitation the night before the stream, and he gets out of bed to test it.

Rafa's first impression: Rex is very beautiful. Unlike Ghostty, it has a settings menu. You can choose from many themes, turn the glass effect on or off and use a compact mode similar to Ghostty. For Rafa, the first reason to switch is simple: Rex lets you put the tabs on the left.

Rex knows what happens inside each tab. If you open Claude Code, the tab shows its icon. Like cmux, it also shows the port that each session uses. It does not have an integrated browser yet. But it has a native Tailscale integration: with one click, you access your server and open remote sessions.

Rex keeps tabs and sessions apart. Each session has a name, and you change sessions with a keyboard shortcut. If you close the app with Cmd+Q and open it again, everything stays in place. The reason: the desktop app is only a client of a server that keeps the sessions and the SSH connections. Watch in the video.

Spotify: AI does not lower code quality, but the processes must adapt

Spotify publishes its data after months of agentic development. In August 2025, they merge about 8,100 PRs. In August 2026, they merge 17,000 changes. To measure quality, they use DORA metrics and code churn: how much code survives over time. The conclusion: there are more incidents, but they do not come from worse code quality. They come from several factors together, which is more likely when you go faster.

Spotify will not slow down. Its plan is to improve what surrounds the change: more observability and mechanisms to find and fix failures fast. Spotify still talks about rollback, but Anthropic now prefers to fix forward. The PRs are larger, but Spotify does not change its thresholds yet. Javi compares it to a gym shower: if you change the temperature without waiting, you never get it right. Watch in the video.

The bomb on the bots: what goes down is Yandex, not the social media bots

A Ukrainian attack on Russian data centers causes a drop in traffic. Cloudflare Radar charts spread on social media: the bot traffic of the Yandex autonomous system drops to zero on 11 October. Many people read them as the end of the propaganda bots on X. Javi explains the confusion: in those charts, "bot" means automated HTTP requests. Yandex is the Russian Google, and its crawler indexes the whole Internet.

What really goes down is almost all of Yandex: maps, bank and the other apps. The activity of the bot networks on Reddit and X also drops, but not to the level that the charts suggest. Rafa says that the r/Conservative subreddit has a day and a half of civil debates. Then the controversy comes back. Javi's lesson: go to the source, because a partial screenshot of a chart is misleading. Watch in the video.

The utility of the week

Insomnia

Like Caffeine, but for the agentic era. You close the lid of your MacBook, and your agents keep working in low power mode. It pauses apps like Slack or Spotify to save battery. If you lose the office Wi-Fi, it connects to the hotspot of your phone. It is open source and lives in the menu bar: one click, and you choose how long the laptop stays awake.

https://github.com/krishhgg/Insomnia

The chat weighs in

svg153: The 29 dollars is what the company pays; the client now pays the rest inside the offers. The consultancies move that cost into the client contract.

NelsonRGrana: I watched the Codely AI courses twice, and I optimized all my work for the 10 euros a month Copilot plan. It goes very well, and 60% of my monthly spend is token cache.

ciltocruz: I imported it a few days ago and got exactly that error. I changed it by hand, and then it worked.

Agenda

Software Crafters Barcelona 2026, with the café live at 16h CEST · 2026-10-17
DevFest Ponferrada 2026 · 2026-10-22
NetCoreConf Madrid 2026 · 2026-10-23

The song of the week

Rafa: «RATATATA» — BABYMETAL, Electric Callboy (A heavy track of Japanese metal.) Watch in the video.

Javi: «Demonios (with El Bicho)» — Estopa, El Bicho (On the day Estopa releases Bicho raro, the first single of their new album La maqueta.) Watch in the video.

The café's music playlist: cdly.to/playlist

The saying of the week

«Every cloud has a silver lining»

Every problem brings something good. After the cloud comes the clear sky. Watch in the video.

More Codely

Event bus en Kafka [Diseño de Infraestructura]

The course is now in the Standard plan. It uses Queues for Kafka, a recent Kafka feature, to build an Event Bus. The first videos are free, and you do not need to sign up.

The joke of the week: I named a class after my partner, and they left me. They said I treat them like an object.

All the news we covered

#CaféConCodely · @CodelyTV · Previous cafés: cdly.to/cafe

Share on Twitter Share on LinkedIn