This is the gnu-apl-mode interactive buffer.

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pclose(APserver) returned error:No child processes
Network listener started. Connection information: mode:tcp addr:34503
      )load 1 apl_bkd
)LOAD apl_bkd (file /home/dalyw/wslib1/apl_bkd) failed: No such file or directory
      kbd_on
VALUE ERROR
      kbd_on
      ^
      )fns k
      )load 1 apl_kbd
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-10-22  12:06:58 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
DUMPED 2021-11-15  15:06:34 (GMT-5) 
      kdb_on
VALUE ERROR
      kdb_on
      ^
      )fns k
kbd_environment     kbd_has_apl_dir     kbd_home_dir
kbd_in_path         kbd_off             kbd_on
kbd_reset_env       kbd_save_env        kbd_set
      kbd_on
0
Couldn't find rules file (-model) 
      )si
⋆
      kbd_has_apl_dir
1
      kbd_storage
/home/dalyw/.gnu-apl
      kbd_environment
      'kbd_environment' ⎕trace ⍳10
      kbd_environment
kbd_environment[3] 
kbd_environment[4] ¯10
kbd_environment[5]    ¯10   
kbd_environment[6] 
      FIO∆pipefrom 'setxkbmap -query'
VALUE ERROR
      FIO∆pipfrom 'setxkbmap -query'
      ^
      FIO∆pipefrom 'setxkbmap -query'
¯10
      )fns FIO
FIO                         FIO∆SockHelper      FIO∆accept
FIO∆access                  FIO∆bind            FIO∆chdir
FIO∆clear_statistics        FIO∆connect         FIO∆errno
FIO∆execve                  FIO∆fclose          FIO∆feof
FIO∆ferror                  FIO∆fflush          FIO∆fgetc
FIO∆fgets                   FIO∆file_errno      FIO∆files_in_directory
FIO∆fopen                   FIO∆fopen_ro        FIO∆fprintf
FIO∆fprintf_stderr          FIO∆fread           FIO∆fscanf
FIO∆fseek_cur               FIO∆fseek_end       FIO∆fseek_set
FIO∆fstat                   FIO∆fsync           FIO∆ftell
FIO∆fwrite                  FIO∆fwrite_utf8     FIO∆get_dyadic_threshold
FIO∆get_monadic_threshold   FIO∆get_statistics  FIO∆getcwd
FIO∆getpeername             FIO∆getsockname     FIO∆getsockopt
FIO∆gettimeofday            FIO∆gmtime          FIO∆listen
FIO∆localtime               FIO∆mkdir           FIO∆mkdir_777
FIO∆mktime                  FIO∆pclose          FIO∆pipefrom
FIO∆pipeto                  FIO∆popen           FIO∆popen_ro
FIO∆printf                  FIO∆read            FIO∆read_directory
FIO∆read_file               FIO∆read_lines      FIO∆recv
FIO∆rename                  FIO∆rmdir           FIO∆select
FIO∆send                    FIO∆send_utf8       FIO∆set_dyadic_threshold
FIO∆set_monadic_threshold   FIO∆setsockopt      FIO∆socket
FIO∆sprintf                 FIO∆sscanf          FIO∆strerror
FIO∆unlink                  FIO∆write           FIO∆write_lines
FIO∆write_utf8              FIO⍙metadata
      utl∆helpFns 'FIO∆ferror'
VALUE ERROR
      utl∆help 'FIO∆ferror'
      ^
      utl∆helpFns 'FIO∆ferror'
Zi ← FIO∆ferror Bh
⍝⍝ ferror(Bh)     
      utl∆helpFns 'FIO∆errno'
Zi ← FIO∆errno         
⍝⍝ errno (of last call)
      FIO∆strerror ¯10
VALUE ERROR
      FIO∆sterror ¯10
      ^
      FIO∆strerror ¯10
No child processes
      ⍞←ph←'r' ⎕FIO[24] 'setxkbmap -query'
10
      ⍞←sink← 5000 ⎕fio[41] ph
114 117 108 101 115 58 32 32 32 32 32 32 101 118 100 101 118 10 109 111 100 101 108 58 32 32 32 32 32 32 112 99 49 48 53 10 108 97 121 111 117 116 58 32 32 32 32 32 117 115 10
      ⎕ucs sink
rules:      evdev
model:      pc105
layout:     us

      ⍞←⎕fio[25] ph
¯10