SCFF: the live root ships compressed, with Xorg and Window Maker
SCFF, the SchOS Compressed File Format (include/fs/scff.h), is a block image cut into 128 KB chunks, each its own zstd frame, behind an index. tools/mkscff writes it from fs-ram.img on every core (-19, 11 s) and checks each chunk decompresses to itself. The kernel carries the .scff as its ramdisk and unpacks a chunk the first time a block in it is read; zero blocks share one page. The kernel and the ISO are the compressed size, and the root costs memory only for what is touched. See docs/architecture/scff.md. zstd 1.5.7 comes from ports/zstd like uACPI: the decoder is compiled into the kernel at -O2, with a static context and a 64 KB stack of its own, and mkscff builds the whole library from the same release. world now has xorg-server, the fbdev and evdev drivers, xinit, Window Maker, xterm and DejaVu, and /root/.xinitrc runs wmaker. That root is 358 MB, 102 MB as SCFF. The ISO no longer carries the root a third time as an ISO 9660 tree, which nothing read. schos.iso: 1389 MB -> 318 MB. El Torito keeps its own copy of the EFI image, the layout real machines have booted. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01S1giNvrHTrPMPw7V6x1kQ4
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Nexoniarz
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@ -16,3 +16,13 @@ ncurses-terminfo-base
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# The PCI and USB ID databases: lspci, fastfetch and Xorg read them.
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hwdata-pci
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hwdata-usb
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# X on the framebuffer, with startx. /root/.xserverrc and .xinitrc (from
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# mkaroot.sh) start it with -dumbSched and run Window Maker in it.
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xorg-server
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xf86-video-fbdev
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xf86-input-evdev
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xinit
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# The desktop: Window Maker, a terminal for it, and a font for both.
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windowmaker
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xterm
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font-dejavu
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@ -1,12 +1,91 @@
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# Generated by tools/posix/alpine-lock.sh from world. Do not edit;
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# change world and run `make alpine-lock`.
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# file sha256 repository
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encodings-1.1.0-r0.apk f7c0eb762638d0249b4fbbe07a8e4ed6aab8e86b74c239c40e47a36219777d52 main
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gmp-6.3.0-r4.apk 85323ef5bce8ff234736dc2d6592ea37aebdc6348a531e27430bdfe38364d256 main
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hwdata-pci-0.408-r0.apk fe61404e6d2bd1e04c021d53641c0ebce97911084d77994e43a288a1278686c1 main
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hwdata-usb-0.408-r0.apk 272d365cb05dd085dd8022154cf71e3f3b0aaddd41c1269eeaf939c9d38675c8 main
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libbsd-0.12.2-r0.apk 407597c04b41dbfe8a05b35d45a3453e32fae7df84aed3a06ff48dd4df1338b6 main
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libelf-0.195-r0.apk 78c5a1993342ab1bdcdce30639fd0937e8000f6d0d85cea171f573d31decd036 main
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libevdev-1.13.6-r0.apk b38a27a4ac55701fd2eb0032977af2664b6fc23b2f9c2cc6e893ad4452fd82d5 community
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libffi-3.5.2-r1.apk 6da1a19313a40c56cac756fb11e2c4d5267831e1c22fc8323f24c943c94da6e0 main
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libncursesw-6.6_p20260516-r0.apk cf8caa8a88bc4ce9d9e395567fefaf9ef7fbd55c50ae6155b35c1b58f3755023 main
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libpciaccess-0.19-r0.apk 03fdccd1e2a0825e7f7fabbac67212e05d271d31d2eff44cc92f707e69908ad4 main
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libpng-1.6.59-r0.apk d16aeb0597f2bc43e0583ac9ff779388ec160c3e22568b640122e94ba55be6d7 main
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libsharpyuv-1.6.0-r0.apk 34621ff53f43030d24d1224fe9cb53b1590ab614cbce6080005cde703e6c874a main
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libsm-1.2.6-r0.apk dd7eff58a46fd60e4afee9c7c1c3508920b0e1d6560129e59aee82329f68afc8 main
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libstdc++-15.2.0-r5.apk 14c987b556f5385a5db18376e788c75f37d85321b8dc1920d926ea7daac1d6f6 main
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libuuid-2.42.3-r1.apk 8306e5bb577696c9069fe1dfd9e1dcc39d2d481c6a1b0e707fd03c3e21aa6aa2 main
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libwebp-1.6.0-r0.apk dc50c0280348330bb113079331c4a35d85e28351c7baa9268ee346aad8398288 main
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libx11-1.8.14-r0.apk 016efc189c6d566061ffe206ed0780e32686c1a8c832a3917d35d2c66d61a40f main
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libxaw-1.0.16-r1.apk 8ac469cddeac40ff2e91c84cb02ba526d7c62e30a79a25c2e3b6e5269236801d main
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libxcb-1.17.0-r2.apk 7935d5ad9c7137b7b3f1292d62f55f7e0cc5c919155218c3060ea46503b3f211 main
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libxcvt-0.1.3-r0.apk 809b454981887c1d1d835c909c46a80650ca72a73a92268a2cf8a666ad82b6b7 community
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libxdmcp-1.1.5-r1.apk 2a93f44f3f85c1eda9ed53691c35d0742b5fcd8e0057cd7380934025936cbf6f main
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libxext-1.3.7-r0.apk 8afe1ee6ab8cb656e12f20dc5b7fb2d4103faee4a38298b94f26ab52e597cbc8 main
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libxfont2-2.0.8-r0.apk f8bf87b9ce835cb307eb8a3d270e226c4437757478c52ba3ad384cecc2ac6fef community
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libxft-2.3.9-r0.apk eba6fd85599b4fedf3acdd3ad3e2eec84ea97a5ba8f1ac570fa1ee37a7d81420 main
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libxinerama-1.1.6-r0.apk 9f780efb3cf675b5253b73b84f278b40757fa7869c6fe70a9790a73f4f7e810f main
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libxkbfile-1.2.0-r0.apk e575c6c314ad87e74887526aca3b1429f5c1d6290e66f2945d4053f387beea57 main
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libxml2-2.13.9-r2.apk 4b2f986159c659f014b942fe8a5d70c67af475153ca826c3dd53389eea46a300 main
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libxmu-1.3.1-r0.apk 5d0b06d1a4b38ac0e070e0dad5e61583e5e147e378ba50418c83e1be4b19986c main
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libxpm-3.5.20-r0.apk 1ed312a00abac5a5840c1f3721921ea8183e664566c19763ed00aa9f35bb2178 main
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libxrender-0.9.13-r0.apk 724aa6c6353e70869e0eb5aa5461e8fc0753b99db765de47a3ae238573dbdcf8 main
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libxshmfence-1.3.3-r0.apk 53790552de7eea17a47aa4c082b06b735c545a0947c41128f97c7be95a7d3d92 main
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libxt-1.3.1-r0.apk 08b167b05ac7dfb892421876cc2467214208b83b2960a9f49e84f9dbcf36e812 main
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libxxf86vm-1.1.7-r0.apk 887a3c5438e1db624d07ac23d16ec08d21fb16de438d75ad2dd5637c958b4108 main
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llvm22-libs-22.1.3-r1.apk dec15bdd29b6ec7fc22aee43bac153a22e6b132c599e5e5d9ccd0d159eae764f main
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mcookie-2.42.3-r1.apk 64f86340991e2f283ce95b1bae21157da6849118cd9f1a2931de5c73d0f9fc3d main
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mesa-26.1.6-r0.apk 8fb0e3d386f09df4f3e3643108b38197558465b2558e6d66d6a9c055adc8d1a9 main
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mesa-egl-26.1.6-r0.apk ccdd25c8f3a069b018a39a5641e4f13ab7ceb511d5991e9f8fb18bd551172ffa main
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mesa-gbm-26.1.6-r0.apk db6b00543e7e686f377a5c250036067742f914112839255e2e5edbbc241bfb0d main
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mesa-gl-26.1.6-r0.apk 4d2d502a3938bd5dc4affec13545271571bb8bec40e7078ef01f34222bfb5d5d main
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mesa-gles-26.1.6-r0.apk 2544a75e74778ab9ddcecfc8d9dc35375cb3a4ac3661e94a1156e2c528d7b59b main
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mkfontscale-1.2.4-r0.apk 2385a7aad3971fcad9d862cb90937e643e633b14bf4b91f8b8ce3040a1468d20 main
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mtdev-1.1.7-r0.apk 004f42bc67bc0eb573d64d802c5f0325f49013cf4aa7576d4b571399df46f3f7 community
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musl-1.2.6-r3.apk e142255d0fa397f14318996bc10378093dcc069dc3dd1b6818c8f28a789c21da main
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ncurses-terminfo-base-6.6_p20260516-r0.apk ce83be6d0bd10584a53c3a5868cc1595ce5f0f8e0b621f8f7f70b6144e521fc9 main
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nettle-3.10.2-r0.apk 693c1a99b781cd17149916df30113ccd6bdddac130298c17b1286fd2ae438386 main
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pixman-0.46.4-r0.apk 378550cbe348dda9b0733014375dba87a89f0077c5f3dbeba7dce8dbcdda707e main
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pkgconf-2.5.1-r0.apk 20cc47b76b82e9424a35ecc4fdd7bd904ef49ada1684214910fae31bc0cab737 main
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spirv-tools-1.4.341.0-r0.apk 6034c22c4f61fb76e517c1d5b11ef5c26c7154d2baeacec8b0a9dcca94ff9a93 main
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tiff-4.7.2-r0.apk 757ce87ebe4923a6be9869d026e250958ca09696529c464781e8a91d2b81670b main
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util-macros-1.20.2-r0.apk 7c129d085b646b13ccef3738e93038221aec840c1a6764279c5adc9950ba1bdc main
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wayland-libs-client-1.25.0-r0.apk a728f7103217cafdc83ff6ad0d679c197dbbe280bd5788c8336259f7a39cb303 main
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windowmaker-0.96.0-r0.apk 15b500d9afccf94a385e042b01ed9b1d709b1627d97597cea59bf63d0bab4f6b community
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xauth-1.1.5-r0.apk 94e80e9687a1829a6fe95fb28d4b08a5531dab182cde8a58ff1b370b2cd293fb community
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xf86-input-evdev-2.11.0-r0.apk 1f3fcd3e837b43ad5e32005e03095b547ddbfc25973f0511e9ff74bf342d2fe0 community
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xf86-video-fbdev-0.5.0-r6.apk 6a8a1b16f82d8810896f00c00b356c8b8d923e9aa0ce64737ae8274ca82f507a community
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xinit-1.4.4-r0.apk efb5dc1e7929824f5add7d5d51d0ecb34ecfd0a773dfca4f061adc8a353b234f community
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xkbcomp-1.5.0-r0.apk 8bfbd3c8ce7180e8cf599d5a0b791993b61fa98f3a19c47aaf5fcbe30c12d0ba main
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xkeyboard-config-2.47-r0.apk 8c8f9af2b78f8e955480aa88103e495d2637edac659a417075e877c88a41fed0 main
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xmodmap-1.0.11-r1.apk 42489c8865d401e894b8da210f5c8e27f58c1d72c83250a505a65bdb8c45bec0 community
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xorg-server-21.1.25-r0.apk 8130c341a5f047069cb35ac77a44d8bab6a2e3cb5a7d0745e3c5096b1909ecfb community
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xorg-server-common-21.1.25-r0.apk bf5994707b4030f249ad44a123ad2686501c82d2002d73d0a641d9001caa37c3 community
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xrdb-1.2.2-r0.apk 29649088693b5974dec3f928a5303e354f7b91e381b778006fe3011d003b1369 community
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xterm-410-r0.apk eff11da325ffb1dcfa4c9902ef27d34cc27b76457e1fc8dad90f10944ecb33b8 community
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xz-libs-5.8.4-r0.apk ab362dd515ead04c31a6c302163248da7aa4813e283c971e6dd3f789b453a1d9 main
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zlib-1.3.2-r1.apk 63aeea03c15a2f9018f81805cfc8aa926bdf5cd68921f22149c2fbb5d0ee9f47 main
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zsh-5.9-r7.apk 22ec3c4de69e38437e351ba5a881f5d88e9b518a248c8aa06d36b148cf16ce32 main
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zstd-libs-1.5.7-r2.apk 23c6065b0049b2406441564bcf0032515a43f78e80d76fcb85535a3803ef5d4e main
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