# API references ```{toctree} --- hidden: true --- Base/index Gui/index Make/index ``` ## Core GNUstep frameworks % Shows 1 column for width < 576px % Shows 2 columns for width >576px, <1200px % Shows 3 columns for width >1200px ::::{grid} 1 2 2 3 :margin: 4 4 0 0 :gutter: 1 :::{grid-item-card} {octicon}`package` Base :link: Base/index :link-type: doc The Objective-C standard library. ``, `` ::: :::{grid-item-card} {octicon}`project` GUI :link: Gui/index :link-type: doc A powerful, flexible, cross-platform desktop GUI toolkit. ``, `` ::: :::{grid-item-card} {octicon}`tools` Make :link: Make/index :link-type: doc An easy-to-use build system based on GNU Make. ::: :::: ## Other GNUstep and GAP frameworks ## Third-party frameworks ### Étoilé ### Objective-S