- replace all `-` dashes in variable names with `_`
- merge `help commands | get subcommands` and `help commands | reject subcommands` together because now `help commands` contains the flatten data
- `$it.description` -> `$it.usage`
- `seq $required-tabs` -> `seq 0 $required-tabs`
- remove `echo $"(seq ...)"` ->  seq ...
- fix: assign fzf result to `let command` and then check with `is-not-empty` before sending to the `help` and the system clipboard
- `str collect` -> `str join`
- `get Column1` -> `get column1.0` explicitly get the first value from the table

- `empty?` -> `is-empty`
- `if {] {}` -> `if {} else {}`

- `empty?` -> `is-empty`
- remove `echo`
- remove additional `ansi_size` because `fill -l` already computes with ansi
- `if {} {}` -> `if {} else {}`
- remove empty else blocks
- `each -n` -> `enumerate | each`
- remove commented old code
- explicitly join together strings with `let new_line` and $"()()" instead of old implicit return. line 39
- `str rpad -c` -> `fill -a r -c`
- remove `autoview`
- `str collect` -> `str join`
- explicit `print`

- `if {} {}` -> `if {} else {}`
- remove logging
- `empty?` -> `is-empty`
- `each -n` -> `enumerate | each`
- remove autoview
- remove empty else blocks
- add missing `let is_columns_empty =` in the `run_ls` function
- `str collect` -> `str join`
- str rpad lpad` -> `fill`

- `str collect` -> `str join`
- `$()()(char newline)` ->  `$"()()"` and `str join (char newline)` do not print newline at the end, how it was in the old nu

- change flag -> optional positional argument for checking for the `null`. Flags now return a boolean value
- `if {} {}` -> `if {} else {}`
- remove unnecessary `echo`
- `empty?` -> `is-empty`
- `$true` `$false` -> `true` `false`
- `$nothing` -> `null`

- delete the duplicated README.md from the old module
- remove `demo.nu`. This script has already been ported to `sourced/nu_101/demo.nu`

- move `nothing.nu`
- move `inner_outer_loop.nu`

- change `where` to `filter` for clarity, because we passing a closure
- check `--dir` if empty

- move from `sourced/` to `modules/`
- add `export`