| sympa | Open source mailing list manager |
| quarto | Open-source scientific and technical publishing system built on Pandoc |
| julius | Open source re-implementation of Caesar III |
| moodle | Free and open-source learning management system (LMS) written in PHP |
| dcfldd | Enhanced version of GNU dd |
| open-fonts | Collection of beautiful free and open source fonts |
| cproto | Tool to generate C function prototypes from C source code |
| chiaki | Free and Open Source PlayStation Remote Play Client |
| jimtcl | Open source small-footprint implementation of the Tcl programming language |
| rtrlib | Open-source C implementation of the RPKI/Router Protocol client |
| dnsmap | Scan for subdomains using brute-force techniques |
| ark-pixel-font | Open source pan-CJK pixel font |
| cpp-netlib | Collection of open-source libraries for high level network programming |
| mapnik | Open source toolkit for developing mapping applications |
| abseil-cpp | Open-source collection of C++ code designed to augment the C++ standard library |
| hackrf | Open source SDR platform |
| inspec | Open-source testing framework for infrastructure with a human- and machine-readable language for specifying compliance, security and policy requirements |
| openrw | Unofficial open source recreation of the classic Grand Theft Auto III game executable |
| silice | Open source language that simplifies prototyping and writing algorithms on FPGA architectures |
| azure-sdk-for-cpp.cmake | Cross-platform, open-source build system generator |
| maple-mono.CN | Open source monospace CN font with round corner and ligatures for IDE and command line
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| maple-mono.NF | Open source Nerd Font font with round corner and ligatures for IDE and command line
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| niimath | Open-source clone of fslmaths |
| survex | Free Software/Open Source software package for mapping caves |
| emacsPackages.sis | |
| jenkins | Extendable open source continuous integration server |
| lxgw-wenkai | Open-source Chinese font derived from Fontworks' Klee One |
| kvazaar | Open-source HEVC encoder |
| jsoncpp | C++ library for interacting with JSON |
| maple-mono.NL-CN | Open source No Ligature monospace CN font with round corner and ligatures for IDE and command line
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| maple-mono.NL-NF | Open source No Ligature Nerd Font font with round corner and ligatures for IDE and command line
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| openslp | Open-source implementation of the IETF Service Location Protocol |
| perlPackages.ack | Grep-like tool tailored to working with large trees of source code |
| gnumake | Tool to control the generation of non-source files from sources |
| manrope | Open-source modern sans-serif font family |
| groonga | Open-source fulltext search engine and column store |
| maple-mono.NF-CN | Open source Nerd Font CN font with round corner and ligatures for IDE and command line
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| maple-mono.NL-OTF | Open source No Ligature OpenType font with round corner and ligatures for IDE and command line
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| nuspell | Free and open source C++ spell checking library |
| public-sans | Strong, neutral, principles-driven, open source typeface for text or display |
| libdmtx | Open source software for reading and writing Data Matrix barcodes |
| maple-mono.NL-TTF | Open source No Ligature monospace TrueType font with round corner and ligatures for IDE and command line
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| spoofer | Assess and report on deployment of source address validation |
| hasklig | Font with ligatures for Haskell code based off Source Code Pro |
| maple-mono.NL-NF-CN | Open source No Ligature Nerd Font CN font with round corner and ligatures for IDE and command line
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| mozart2 | Open source implementation of Oz 3 |
| lzbench | In-memory benchmark of open-source LZ77/LZSS/LZMA compressors |
| perl5Packages.ack | Grep-like tool tailored to working with large trees of source code |
| behdad-fonts | Persian/Arabic Open Source Font |
| rhvoice | Free and open source speech synthesizer for Russian language and others |
| _0xproto | Free and Open-source font for programming |
| cmakeWithGui | Cross-platform, open-source build system generator |
| maple-mono.woff2 | Open source WOFF2.0 font with round corner and ligatures for IDE and command line
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| maple-mono.NL-Woff2 | Open source No Ligature WOFF2.0 font with round corner and ligatures for IDE and command line
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| cmakeCurses | Cross-platform, open-source build system generator |
| quartoMinimal | Open-source scientific and technical publishing system built on Pandoc |
| perlPackages.DirSelf | __DIR__ constant for the directory your source file is in |
| spoofer-gui | Assess and report on deployment of source address validation |
| clarity-city | Open source sans-serif typeface |
| martian-mono | Free and open-source monospaced font from Evil Martians |
| texlivePackages.vpe | Source specials for PDF output |
| haskellPackages.osv | Open Source Vulnerability format |
| kicad-small | Open Source Electronics Design Automation suite, without 3D models |
| perl5Packages.DirSelf | __DIR__ constant for the directory your source file is in |
| camingo-code | Monospaced typeface designed for source-code editors |
| fourmolu | A formatter for Haskell source code |
| haskellPackages.hob | A source code editor aiming for the convenience of use |
| openvino | Open-source toolkit for optimizing and deploying AI inference |
| agorakit | Web-based, open-source groupware |
| haskellPackages.tabs | Indents source files |
| kicad-testing | Open Source Electronics Design Automation suite |
| opengrok | Source code search and cross reference engine |
| perlPackages.Filter | Source Filters |
| openlibm | High quality system independent, portable, open source libm implementation |
| gnumake42 | Tool to control the generation of non-source files from sources |
| castopod | Open-source hosting platform made for podcasters who want to engage and interact with their audience |
| haskellPackages.hfmt | Haskell source code formatter |
| dokuwiki | Simple to use and highly versatile Open Source wiki software that doesn't require a database |
| akkuPackages.rapid-read | Scheme reader with source-location information |
| stormlib | Open-source project that can work with Blizzard MPQ archives |
| cmakeMinimal | Cross-platform, open-source build system generator |
| ezstream | Command line source client for Icecast media streaming servers |
| haskellPackages.loch | Support for precise error locations in source files |
| haskellPackages.scan | lexical style suggestions for source code |
| openjpeg | Open-source JPEG 2000 codec written in C language |
| perl5Packages.Filter | Source Filters |
| sarasa-gothic | CJK programming font based on Iosevka and Source Han Sans |
| vimPlugins.cmp-async-path | Nvim-cmp source for filesystem paths with async processing |
| ossec-agent | Open source host-based instrusion detection system |
| bazel-watcher | Tools for building Bazel targets when source files change |
| johnny-reborn | Open-source engine for the classic "Johnny Castaway" screensaver (ready to use, with resources) |
| znapzend | High performance open source ZFS backup with mbuffer and ssh support |
| maple-mono.NL-TTF-AutoHint | Open source No Ligature monospace ttf autohint font with round corner and ligatures for IDE and command line
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| openmoji-black | Open-source emojis for designers, developers and everyone else |
| perlcritic | Critique Perl source code for best-practices |
| openmoji-color | Open-source emojis for designers, developers and everyone else |
| perl538Packages.ack | Grep-like tool tailored to working with large trees of source code |
| elmPackages.elm-format | A source code formatter for Elm |
| maple-mono.opentype | Open source OpenType font with round corner and ligatures for IDE and command line
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| texlivePackages.exsol | Exercises and solutions from the same source, into a book |