biff.graph is a lightweight Clojure library for structuring data models as queryable graphs, inspired by Pathom but intentionally simpler. It lets developers define resolvers with input/output queries that unify database access and derived business logic into a single graph. The query engine handles traversal, caching, and batching without a query planning step, keeping the implementation around 600 lines. Resolvers can be autogenerated from database schemas, composed incrementally, and tested in isolation. The library integrates with the Biff web framework ecosystem, supporting Ring middleware, biff.fx effect handlers, schema validation, and modular organization.
Nguồn: https://github.com/jacobobryant/biff/tree/v2.x/libs/graph. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.
Báo cáo tiến độ hai tháng 5-6/2026 của Bozhidar Batsov về dự án nREPL/CIDER (được tài trợ bởi Clojurists Together) ghi nhận sự kiện CIDER 1.22 ra mắt (kết thúc phiên bản 1.x) và CIDER 2.0 sắp hoàn thiện với các tính năng mới như transient menus, inline macroexpansion, trình duyệt đồ thị cuộc gọi, cùng khả năng hiển thị nội dung REPL giàu có. Debugger Sayid cũng được hồi sinh sau nhiều năm ngừng phát triển. Hai dự án mới là 'port' (môi trường Clojure tối giản dựa trên prepl cho Emacs) và 'neat' (client nREPL đa ngôn ngữ cho Emacs) đã ra mắt. Cải tiến tooling ClojureScript thông qua các bản cập nhật Piggieback 0.7.0 và Weasel 0.8.0, cùng nhiều bản phát hành mới cho cider-nrepl, Orchard, và refactor-nrepl. Tác giả cũng đề cập đến sự suy giảm tài trợ cho các dự án nguồn mở trong 4 năm qua.
Lập trình viên Clojure nên đọc bài này để cập nhật những tiến bộ mới nhất trong hệ sinh thái nREPL/CIDER, từ các tính năng nâng cao như debug Sayid, giao diện menu tạm thời và đồ họa gọi hàm cho đến các công cụ mới như port và neat, giúp tối ưu hóa hiệu suất và trải nghiệm phát triển trong môi trường Emacs.
MrAnderson 0.6 is released, a Clojure dependency inlining tool used by cider-nrepl to bundle private copies of dependencies that can't clash with user project dependencies. The release fixes several long-standing bugs including incorrect handling of records vs. namespace references (dash vs. underscore munging), over-eager import rewriting, mixed imports of deftype-generated and real Java classes, skipped import rewrites, broken load statement path rewriting, and a critical bug that could delete project sources. The release also adds a Leiningen-free entry point (mranderson.core/inline-deps) enabling use with tools.build, and improves test coverage for the Java class repackaging subsystem.
Sayid 0.4 is a revived release of the long-neglected omniscient debugger for Clojure. Rather than using breakpoints, Sayid records every function call's arguments, return values, timing, and call tree so developers can inspect execution history after the fact. The release brings new artifact coordinates (mx.cider/sayid), renamed namespaces, a reworked nREPL API that returns structured data instead of pre-rendered text, and a rebuilt Emacs UI with foldable trees, source jumping, and CIDER inspector integration. The motivation came from CIDER 2.0 work, where the author realized Sayid's approach was superior to anything he could build into the built-in tracer. Breaking changes were made deliberately since the bundled Emacs client was effectively the only consumer.
A deep-dive into Piggieback, the nREPL middleware that enables ClojureScript evaluation over a standard nREPL server. The author explains how Piggieback hijacks nREPL sessions to reroute eval messages to a JavaScript runtime (Node, browser, etc.) via ClojureScript's IJavaScriptEnv protocol, without requiring any client-side changes. Key internals covered include session-based dispatch, the DelegatingReplEnv trick to prevent premature teardown, how the compiler environment is stashed for use by tools like cider-nrepl, and the two distinct code paths for REPL setup vs. steady-state evaluation. The post also covers known limitations (one Node REPL per JVM, no interrupt support, multi-form eval), contrasts Piggieback's approach with shadow-cljs, and summarizes recent 0.6.x/0.7.0 bug fixes and refactoring work done as part of the CIDER 2.0 effort.
CIDER, the Clojure interactive development environment for Emacs, is getting a major version bump to 2.0. Key additions include transient-based discoverable keymaps, a unified foldable tree-view widget across all browsers, built-in cross-reference/call-graph functionality (reducing need for clj-refactor.el or clojure-lsp), a revamped debugging toolbox with inline macro stepping and a dedicated trace buffer, ClojureScript test and macroexpansion fixes, async Eldoc, and numerous quality-of-life improvements. The snapshot is available on MELPA now, with the official release expected in a week or two. The author credits AI agents for helping prototype ideas faster, while noting design decisions remain his own.