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[preview2-shim] Runtime values are exported only as types

bugSomething isn't workingSomething isn't working

generated-typesRelated to generated types (Typescript)Related to generated types (Typescript)

good first issueGood for newcomersGood for newcomers

project/js-component-bindgen

Status: Open.

#1596 In bytecodealliance/jco;

· eduardomourar opened on Jun 4, 2026

Reduce duplicated WIT files in the repository

good first issueGood for newcomersGood for newcomers

project/jco

tests

Status: Open.

#1594 In bytecodealliance/jco;

· vados-cosmonic opened on Jun 3, 2026

Implement non-Promise collapsed future<future<T>> lowering in async calls

bugSomething isn't workingSomething isn't working

project/js-component-bindgen

Status: Open.

#1430 In bytecodealliance/jco;

· vados-cosmonic opened on Apr 28, 2026

Fix async flattened in-variant f32/f64 representation lifts/lowers

bugSomething isn't workingSomething isn't working

project/js-component-bindgen

Status: Open.

#1428 In bytecodealliance/jco;

· vados-cosmonic opened on Apr 27, 2026

[jco-std] backwards/forwards compatibility across WASI 0.2.x releases

Status: Open.

#1245 In bytecodealliance/jco;

· ericgregory opened on Feb 5, 2026

Node.js Compat

Status: Open.

#1206 In bytecodealliance/jco;

· MendyBerger opened on Jan 20, 2026

Resolve the circular dependency between jco and componentize-js

Status: Open.

#1158 In bytecodealliance/jco;

· rajsite opened on Dec 6, 2025

preview2 shim browser filesystem writeViaStream has O(n^2) overhead due to repeatedly concatenating buffers

bugSomething isn't workingSomething isn't working

performance

platform/browser

project/preview2-shim

Status: Open.

#1069 In bytecodealliance/jco;

· TerrorJack opened on Oct 27, 2025

Avoid using process.binding()

enhancementNew feature or requestNew feature or request

platform/nodejs

project/preview2-shim

Status: Open.

#1059 In bytecodealliance/jco;

· jcbhmr opened on Oct 21, 2025

Return to latest windows on CI Runners

bugSomething isn't workingSomething isn't working

help wantedExtra attention is neededExtra attention is needed

os/windows

tests

Status: Open.

#1038 In bytecodealliance/jco;

· vados-cosmonic opened on Oct 3, 2025

Resource disposal inside component-exported Resources does not trigger

bugSomething isn't workingSomething isn't working

platform/nodejs

project/jco

project/jco-transpile

project/js-component-bindgen

upstream/componentize-js

Status: Open.

#989 In bytecodealliance/jco;

· vados-cosmonic opened on Aug 27, 2025

Variant names clash in TypeScript

Status: Open.

#926 In bytecodealliance/jco;

· yannbolliger opened on Aug 12, 2025