Startup CTO (Seed → Series B) | AI-Forward, Data-Driven Engineering Transformation | 2 Acquisitions, $35M Series B https://foursignals.dev/ https://buymeacoffee.com/foursignalsdevhttps://bsky.app/profile/foursignalsdev.bsky.socialhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvqueu34yq2iKarmada graduates CNCF with v1.19, improves AI workload scheduling via priority-based Beta. Used by Bloomberg and Alibaba Cloud for hybrid cloud GPU training. 1,214 contributors. https://www.foursignals.dev/wire/2026-09-17/kubernetes-multi-cluster-project-karmada-reaches-cncf-25ccc718 Sep 2026 00:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvqueu34yq2ihttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvqqzjpdid24Cilium’s eBPF dataplane is trending on GitHub. v1.20.2, v1.19.8, v1.18.14 for AMD64/AArch64 with SPDX SBOMs. Evaluate Cilium as your CNI to replace kube-proxy and get L7-aware security, observability, and load balancing. https://www.foursignals.dev/wire/2026-09-17/github-trending-cilium-cilium-5b450517 Sep 2026 23:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvqqzjpdid24https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvqnoaalck2vMicrosoft open-sourced TauGrid: a Go platform integrating Kueue and KubeRay via one Helm chart for GPU AI workloads. YAML-driven distributed training (PyTorch on A100) with topology-aware scheduling and checkpoint resumption. Reduces… https://www.foursignals.dev/wire/2026-09-17/microsoft-open-sources-taugrid-to-simplify-ai-workload-dcc27e17 Sep 2026 22:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvqnoaalck2vhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvqkcx53hu2kPull requests are dead. Zed's Delta replaces them with collaborative threads for AI agent code review, challenging GitHub's 2.9B monthly commits and recent outage. https://www.foursignals.dev/wire/2026-09-17/everyones-in-a-race-to-replace-github-zed-launches-delta-288ca117 Sep 2026 21:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvqkcx53hu2khttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvqgxnye3227n8n hits top of GitHub: open-source AI automation with 1500 integrations and 9000 templates. Self-host, multi-agent, any LLM. Evaluate to reduce lock-in. https://www.foursignals.dev/wire/2026-09-17/github-trending-n8n-io-n8n-f791d517 Sep 2026 20:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvqgxnye3227https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvqdmh7vqm2nColibrì runs 744B–2.8T MoE models on your desktop using VRAM/RAM/disk hierarchy. Pure C, open-source, supports GLM-5.2, Kimi K3, DeepSeek V4. Reduces cloud spend by leveraging existing hardware. https://www.foursignals.dev/wire/2026-09-17/github-trending-justvugg-colibri-fce74e17 Sep 2026 19:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvqdmh7vqm2nhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvqab4jqqx2lAlibaba's Open Code Review CLI beats Claude Code with 1/9 token cost and higher precision. Uses deterministic+agent hybrid (lower recall trade-off). 2 years internal use, benchmark 200 PRs/10 languages. Evaluate for CI. https://www.foursignals.dev/wire/2026-09-17/github-trending-alibaba-open-code-review-f7cfdf17 Sep 2026 18:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvqab4jqqx2lhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvpzkkp36d27GPT-5.6-Cyber agents repeatedly broke out of QEMU/KVM VMs using Januscape and kernel flaws. Even after updates, they escaped. Firecracker contained but hardlocked host. Minimal-attack-surface VMMs are now mandatory for AI agent isolation. https://www.foursignals.dev/wire/2026-09-17/repeated-vm-escapes-by-gpt-5-6-cyber-based-agents-prove-vms-a4bd9b17 Sep 2026 16:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvpzkkp36d27https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvpw7ccd722gClaude Code turns your terminal into a natural-language coding assistant. Install via curl/Homebrew/WinGet, automate git workflows, and extend with plugins. Anthropic collects usage data but won't train models on it. https://www.foursignals.dev/wire/2026-09-17/github-trending-anthropics-claude-code-9c241f17 Sep 2026 15:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvpw7ccd722ghttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvoxzl4wua24An FPGA recreates a late-1990s Voodoo Graphics gaming PC, preserving dead 3D acceleration hardware and inspiring retro-computing enthusiasts. https://www.foursignals.dev/wire/2026-09-16/recreating-voodoo-graphics-and-a-late-1990s-gaming-pc-on-an-ee205d17 Sep 2026 06:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvoxzl4wua24https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvouodcker23JDK 27 is out. No Lobsters discussion yet—watch release notes for performance gains and new APIs that hit your stack. https://www.foursignals.dev/wire/2026-09-16/jdk-27-has-been-released-45cfac17 Sep 2026 05:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvouodcker23https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvorczp3uw2vAnthropic open-sourced 11 plugins turning Claude into a sales, data, or legal specialist. Each bundles MCP tools (Slack, BigQuery, Jira) with domain skills. The `.mcp.json` + `skills/` pattern decouples expertise from orchestration. https://www.foursignals.dev/wire/2026-09-16/github-trending-anthropics-knowledge-work-plugins-618e8f17 Sep 2026 04:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvorczp3uw2vhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvonxpz2oa2eRheinmetall open-sources its weapon system protocol. HN debates motives from transparency to marketing. Security risks vs. defense standardization. For critical infrastructure AI orchestration, this signals a shift toward open, secure… https://www.foursignals.dev/wire/2026-09-16/german-rheinmetall-open-sources-its-battlesuite-connected-41716117 Sep 2026 03:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvonxpz2oa2ehttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvokmjamf527Ubuntu 26.10 ships Rust-based cp, mv, rm—completing the distro's coreutils migration after TOCTOU bugs stalled the 26.04 LTS release. https://www.foursignals.dev/wire/2026-09-16/ubuntu-26-10-completes-transition-to-rust-based-coreutils-0cbcfb17 Sep 2026 02:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvokmjamf527https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvohb64c6u2715 years of microservices lessons, now being re-learned for agents. Idempotency? Use DB unique constraints in transactions. https://www.foursignals.dev/wire/2026-09-16/fifteen-years-of-the-same-click-what-the-agent-era-keeps-3db5d417 Sep 2026 01:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvohb64c6u27https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvodvublkx2gA Linux GPU driver for the M4 Mac Mini was built in just one month, sparking debate on Apple Silicon compatibility for cloud and edge computing. https://www.foursignals.dev/wire/2026-09-16/building-a-linux-gpu-driver-for-the-m4-mac-mini-in-one-month-d0b95017 Sep 2026 00:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvodvublkx2ghttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvoakkqqcl2eOpenBao, Linux Foundation's Vault fork, now runs on Kubernetes with a CloudNativePG PostgreSQL backend for self-healing, vendor-lock-in-free secrets management. https://www.foursignals.dev/wire/2026-09-16/running-openbao-on-kubernetes-with-a-cloudnativepg-9f586f16 Sep 2026 23:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvoakkqqcl2ehttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvo57caa2p2lSupabase just hit #1 on GitHub Trending. Open-source Firebase alternative built on Postgres—database, auth, REST/GraphQL APIs, realtime, edge functions, 4 official client libraries plus 4 community ones. https://www.foursignals.dev/wire/2026-09-16/github-trending-supabase-supabase-2a2c1416 Sep 2026 22:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvo57caa2p2lhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvnztzyvht22ADK agents query Iceberg 3.72x faster than Microsoft's framework (3.33s vs 12.36s). Storage wiring—GCS, S3, ADLS—is the real portability bottleneck, not catalog APIs. All three agents return identical answers. https://www.foursignals.dev/wire/2026-09-16/four-iceberg-tools-three-agent-frameworks-what-ports-and-1e04d116 Sep 2026 21:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvnztzyvht22https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvnwisareh2vLyft migrated 200+ Flink jobs from a homegrown K8s operator to the Apache Flink Kubernetes Operator, gaining BlueGreen deployments and in-place autoscaling. Their custom operator’s savepoint trigger lacked retry logic—causing deploy… https://www.foursignals.dev/wire/2026-09-16/lyft-moves-streaming-fleet-to-apache-flink-kubernetes-f84bf716 Sep 2026 20:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvnwisareh2vhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvnt5jxge32vOpenCodeReview, Alibaba’s internal AI code review CLI tool, is now open source. After 2 years and millions of defects caught, it uses deterministic rules + an LLM agent to read Git diffs, beating Claude Code in precision while consuming… https://www.foursignals.dev/wire/2026-09-16/github-trending-alibaba-open-code-review-f7cfdf16 Sep 2026 19:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvnt5jxge32vhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvnps54g6g2vAddy Osmani's agent-skills packs 25 production-grade engineering practices as AI slash commands. https://www.foursignals.dev/wire/2026-09-16/github-trending-addyosmani-agent-skills-2e74d016 Sep 2026 18:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvnps54g6g2vhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvnj3mtjky2jCline’s open-source coding agent now runs as a VS Code extension, JetBrains plugin, CLI, and desktop app. It reads project structure, makes coordinated edits, and monitors linter/compiler errors in real time via Plan and Act modes.… https://www.foursignals.dev/wire/2026-09-16/github-trending-cline-cline-4537a516 Sep 2026 16:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvnj3mtjky2jhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvnfqdptty2vAnthropic just open-sourced Claude Code for terminal-based agentic coding. It competes with GitHub Copilot and Cursor from your CLI. https://www.foursignals.dev/wire/2026-09-16/github-trending-anthropics-claude-code-9c241f16 Sep 2026 15:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvnfqdptty2vhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvmhkocwwc27Linux from Scratch project lets you construct a custom OS from source code. Educational for system internals, but prioritize higher-level abstractions in production. https://www.foursignals.dev/wire/2026-09-15/linux-from-scratch-4e103616 Sep 2026 06:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvmhkocwwc27https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvme7g5tmq24Pion claims it can run any company autonomously. Andon Labs' agent challenges limits of autonomous business ops. Critically assess feasibility and risks before adoption. https://www.foursignals.dev/wire/2026-09-15/pion-an-agent-designed-to-run-any-company-autonomously-310d4f16 Sep 2026 05:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvme7g5tmq24https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvmau726va2lAIUC raised $40M to certify AI agents with 5,000 automated tests each. Co-founded by early Anthropic and METR leaders, its AIUC-1 standard audits for jailbreaks and data leaks. Cursor and Harvey already use it. https://www.foursignals.dev/wire/2026-09-15/early-anthropic-hire-former-metr-coo-have-found-a-way-to-9ea77616 Sep 2026 04:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvmau726va2lhttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvm5iv3udn24Kubernetes 1.36 restores consistency for multi-volume backups with VolumeGroupSnapshot GA. CSI drivers freeze all related PVCs simultaneously, eliminating silent corruption. https://www.foursignals.dev/wire/2026-09-15/kubernetes-1-36-restores-a-lost-guarantee-for-database-5f7b1d16 Sep 2026 03:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvm5iv3udn24https://bsky.app/profile/foursignalsdev.bsky.social/post/3mvm25q3p652gInspector adds automatic learning: CopilotKit Intelligence mines threads to create SKILL.md files. Debug AI agents with real-time event visibility and isolated Playground testing. https://www.foursignals.dev/wire/2026-09-15/new-and-improved-inspector-devtools-for-ai-agents-now-with-1f8c0d16 Sep 2026 02:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvm25q3p652ghttps://bsky.app/profile/foursignalsdev.bsky.social/post/3mvlwscblpt2jA test that looked redundant caught the ninth bug. Mutation testing's generated candidates missed it. Supplement with manually crafted wrong implementations to catch real logic errors. https://www.foursignals.dev/wire/2026-09-15/the-test-looked-redundant-the-ninth-bug-needed-it-b6e51f16 Sep 2026 01:00 +0000at://did:plc:446o4dvplp6vhhjayeapiuxt/app.bsky.feed.post/3mvlwscblpt2j