Nushell Updates - This Week in Nushell #129

# This week in Nushell #129 ## Nushell - wingertge [removed stringification for binary values in `save` command](https://github.com/nushell/nushell/pull/4428), and [Fix in-shell docs for kill command in engine-q](https://github.com/nushell/nushell/pull/4393) - jt created [added support for defining known externals with their own custom completions ](https://github.com/nushell/nushell/pull/4425), and [improved quote path completions with drill-down](https://github.com/nushell/nushell/pull/4422), and [Fix captures](https://github.com/nushell/nushell/pull/4421), and [improved external command completions with spaces](https://github.com/nushell/nushell/pull/4420), and [fixed multi-command variable captures](https://github.com/nushell/nushell/pull/4413), and [Fix string interpolation paren cases](https://github.com/nushell/nushell/pull/4410), and [Fix help flag](https://github.com/nushell/nushell/pull/4398), and [Make `let-env` work like `let`](https://github.com/nushell/nushell/pull/4389), and [Bump reedline](https://github.com/nushell/nushell/pull/4388), and [Re-port filesystem commands](https://github.com/nushell/nushell/pull/4387), and [Move nth to select](https://github.com/nushell/nushell/pull/4385), and [Use 'table' on scripts and -c commands](https://github.com/nushell/nushell/pull/4377), and [Fix 'enter' to expand path before checking for it](https://github.com/nushell/nushell/pull/4370), and [Bump to 0.44](https://github.com/nushell/nushell/pull/4365), and [Merge engine-q into Nushell (second try)](https://github.com/nushell/nushell/pull/4364) - fdncred [added parameter to set thread count for parallel commands](https://github.com/nushell/nushell/pull/4424), and [tweak wording](https://github.com/nushell/nushell/pull/4415), and [turn down the perf volume a bit](https://github.com/nushell/nushell/pull/4412), and [fix broken `-w` param for `grid`](https://github.com/nushell/nushell/pull/4397), and [add `--perf` cli param](https://github.com/nushell/nushell/pull/4391), and [update starship docs](https://github.com/nushell/nushell/pull/4375), and [update ls_colors defaults](https://github.com/nushell/nushell/pull/4371) - elferherrera [deprecated commands](https://github.com/nushell/nushell/pull/4405) - sholderbach [fixed `trash-support` feature flag](https://github.com/nushell/nushell/pull/4394), and [made ANSI stripping lazy in more places](https://github.com/nushell/nushell/pull/4380), and [reduced table allocs: only strip ANSI if necessary](https://github.com/nushell/nushell/pull/4378) - henryrt [fixed "Index out of bounds" when input to the group-by filter is empty. #4369](https://github.com/nushell/nushell/pull/4382)

This Nushell update recaps the changes and fixes made this week, including removing stringification for binary values, adding support for defining known externals with custom completions, improving quote path completions, fixing variable captures and string interpolation, making 'let-env' work like 'let', re-porting filesystem commands, moving 'nth' to 'select', and merging engine-q into Nushell. Other updates include adding a parameter to set thread count for parallel commands, deprecating commands, fixing feature flags, making ANSI stripping lazy, and fixing an index out of bounds error.