OpenLDK is a Common Lisp JIT compiler and runtime that lets Java bytecode execute inside SBCL, motivated by the need to use Java libraries directly from Lisp. Targeting JDK 25 and using OpenJDK’s runtime libraries, it turns loaded Java classes into CLOS classes, then compiles methods lazily: bytecode becomes an intermediate form and Lisp code, which SBCL compiles to native machine code on first use. This approach reuses SBCL’s compiler while preserving Java behavior such as 32-bit integer overflow. HotSpot remains the better choice for general Java performance; OpenLDK’s aim is close integration with Lisp.
That integration allows Lisp to add CLOS methods around Java methods, define classes visible to Java, and exchange collections, callbacks, and exceptions across the boundary. Syntax blocks also let Lisp expressions invoke Kotlin, Scala, Groovy, Clojure, Kawa, JScheme, and ABCL, even nesting all seven language implementations in one expression. The runtime supports substantial software, including javac, language compilers and REPLs, and Spring Boot and Quarkus applications. Its striking startup figure - about 84 milliseconds for an initialized Spring Boot application - comes from saving the running application in a Lisp image and launching that image again, not from a claim that ordinary Java startup is that fast.
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Linux 7.4 adds opt-in DMA-BUF read and write support through io_uring, enabling hardware memory buffers to move through the I/O path without CPU copies. The initial implementation supports NVMe block devices, with buffers up to 4 GB. (phoronix.com)
After a year running Dioxus fullstack apps, one Rust codebase and shared types across server and client make development and refactoring simpler. The major drawback is a 90-minute release build on GitHub Actions, and an all-Rust stack still has some exceptions. (oxidt.com)
After four months back with Zig, Anna Liberty built a small-network client library, a typing game, and an N-body simulator, while enjoying Zig’s straightforward development experience. The experience also exposed unfinished tooling, including a built-in fuzzer that did not work, and highlighted the value of local Zig meetups. (gracefulliberty.com)
Popcorn 1.0 replaces AtomVM with OTP/BEAM, giving Elixir applications in the browser broader compatibility and a more resilient runtime. The move reduces the need to maintain patches and establishes a stable base for future releases. (swmansion.com)
Entire launched a Git-compatible forge that stores full repository copies near cloud agents, spreading clone traffic across regions instead of bottlenecking at one central server. The company argues that decentralized storage can scale Git for agent-driven development without replacing Git itself. (entire.com)
Ghostty 1.4 adds complete animated Kitty graphics support, SSH setup, a Linux OpenGL renderer, and performance improvements. Scrollback compression and other changes cut memory use by 50-90%, and the release fixes 10 security advisories. (twitter.com)
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