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* kernel+sh: real anonymous pipes (concurrent, streaming, SIGPIPE)user5 days4-12/+84
* term/osk: scroll region so the OSK never hides the input lineuser5 days1-0/+16
* sh: handle backspace in readline; prompt is now '#'user5 days1-1/+5
* fs: reject open()/read() on a directory (EISDIR)user5 days5-6/+8
* fs rewrite stage 3: nested directories, paths, cwd (cd/mkdir/ls)user5 days5-3/+77
* fs rewrite stage 2: inodes + root directory (block-based, persistent)user5 days4-7/+14
* fs rewrite stage 1: persistent block device (bounce buffer, cart SRAM)user6 days3-0/+29
* jobs: background execution (&), non-blocking reap, spin demouser6 days4-7/+38
* kill + ps: implement SYS_KILL (pid 1 immortal) and a ps tooluser6 days4-0/+47
* shell: I/O redirection (>/<) and pipes (|); rewrite shell in Cuser6 days3-16/+158
* filesystem: a RAM FS (WRAMX) + ls/cat/save/rm; wc/head read filesuser6 days8-21/+139
* libc: option parsing (hasflag/optval); wc -l/-w/-c, head -n Nuser6 days4-15/+47
* tools: wc, head, and an argc/argv demo (args) + libc.c helpersuser6 days7-8/+89
* libc + CLI tools: a small C userlanduser6 days9-34/+102
* C toolchain: run SDCC-compiled C programs as gbos processesuser6 days5-0/+103