frectonz @frectonz.et · 31/08/2026Interview (tmpout.sh/5/2.html)tmpout.shInterview: Doug McIlroy ~ tmp.0ut Staff 000
frectonz @frectonz.et · 31/08/2026Computing is crazy because we can interview the guy who created the hammer at the same time the industry is trying to build self replicating robots. 100
frectonz @frectonz.et · 30/08/2026pub type BoxStr = Box<str>; pub type BoxList<T> = Box<[T]>; Should be your defaults until you need to modify the data. 010
frectonz @frectonz.et · 29/08/2026Spending my Saturday playing around with Acadia. Feels like i'm doing a detox, no syntax highlighting, no LSPs, no LLMs. @acadia.engineering and @terezasokol.bsky.social cooked with this 👏 0134
frectonz @frectonz.et · 16/02/2026pennyproxy.compennyproxy.comPenny - Serverless for your serversA reverse proxy that starts your apps on demand and kills them when idle. 000
frectonz @frectonz.et · 12/12/2025I just completed all 12 days of Advent of Code 2025! #AdventOfCode adventofcode.com Cursor did it not me, also stole a python solution for Day 10 Part 2adventofcode.comAdvent of Code 2025 040
frectonz @frectonz.et · 11/12/2025github.com/frectonz/adv...github.comadvent_of_code_2025/day-11 at main · frectonz/advent_of_code_2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 020
frectonz @frectonz.et · 11/12/2025I've completed "Reactor" - Day 11 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/11 Used @rust-lang.org Part 1 - Used Petgraph Part 2 - Used Pathfindingadventofcode.comDay 11 - Advent of Code 2025 150
frectonz @frectonz.et · 10/12/2025github.com/frectonz/adv...github.comadvent_of_code_2025/day-10/part-1 at main · frectonz/advent_of_code_2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 010
frectonz @frectonz.et · 10/12/2025Couldn't solve Day 10, only did part 1. Used @rust-lang.org also use nom for the parser Implementing the parser was the only fun part 120
frectonz @frectonz.et · 09/12/2025github.com/frectonz/adv...github.comadvent_of_code_2025/day-09 at main · frectonz/advent_of_code_2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 000
frectonz @frectonz.et · 09/12/2025I've completed "Movie Theater" - Day 9 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/9 Used @rust-lang.orgadventofcode.comDay 9 - Advent of Code 2025 130
frectonz @frectonz.et · 08/12/2025This one broke me, had to port someone else's python code just to get the stars. github.com/frectonz/adv...github.comadvent_of_code_2025/day-08 at main · frectonz/advent_of_code_2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 020
frectonz @frectonz.et · 08/12/2025I've completed "Playground" - Day 8 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/8 Used @typescriptlang.orgadventofcode.comDay 8 - Advent of Code 2025 130
frectonz @frectonz.et · 07/12/2025github.com/frectonz/adv...github.comGitHub - frectonz/advent_of_code_2025: Solutions for advent of code 2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 010
frectonz @frectonz.et · 07/12/2025I've completed "Laboratories" - Day 7 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/7 Used Elmadventofcode.comDay 7 - Advent of Code 2025 130
frectonz @frectonz.et · 06/12/2025github.com/frectonz/adv...github.comadvent_of_code_2025/day-06 at main · frectonz/advent_of_code_2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 010
frectonz @frectonz.et · 06/12/2025I've completed "Trash Compactor" - Day 6 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/6 Used @haskell.orgadventofcode.comDay 6 - Advent of Code 2025 140
frectonz @frectonz.et · 05/12/2025github.com/frectonz/adv...github.comadvent_of_code_2025/day-05 at main · frectonz/advent_of_code_2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 000
frectonz @frectonz.et · 05/12/2025I've completed "Cafeteria" - Day 5 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/5 Used @ocaml.orgadventofcode.comDay 5 - Advent of Code 2025 151
frectonz @frectonz.et · 04/12/2025github.com/frectonz/adv...github.comadvent_of_code_2025/day-04 at main · frectonz/advent_of_code_2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 000
frectonz @frectonz.et · 04/12/2025I've completed "Printing Department" - Day 4 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/4 Used @rust-lang.orgadventofcode.comDay 4 - Advent of Code 2025 140
frectonz @frectonz.et · 03/12/2025github.com/frectonz/adv...github.comadvent_of_code_2025/day-03 at main · frectonz/advent_of_code_2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 000
frectonz @frectonz.et · 03/12/2025I've completed "Lobby" - Day 3 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/3 Used Idrisadventofcode.comDay 3 - Advent of Code 2025 120
frectonz @frectonz.et · 02/12/2025github.com/frectonz/adv...github.comadvent_of_code_2025/day-02 at main · frectonz/advent_of_code_2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 000
frectonz @frectonz.et · 02/12/2025I've completed "Gift Shop" - Day 2 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/2 Used @gleam.runadventofcode.comDay 2 - Advent of Code 2025 120
frectonz @frectonz.et · 01/12/2025github.com/frectonz/adv...github.comadvent_of_code_2025/day-01 at main · frectonz/advent_of_code_2025Solutions for advent of code 2025. Contribute to frectonz/advent_of_code_2025 development by creating an account on GitHub. 000
frectonz @frectonz.et · 01/12/2025I've completed "Secret Entrance" - Day 1 - Advent of Code 2025 #AdventOfCode adventofcode.com/2025/day/1 Used @unison-lang.orgadventofcode.comDay 1 - Advent of Code 2025 130
frectonz @frectonz.et · 28/05/2025I think this isnt just a bluesky thing, people will disagree with you and misrepresent you wherever you're on the internet Dont wait for a time where everyone bluesky is pleasant and understanding, because that's most likely never going to be true on bluesky or anywhere else on the public internet 0100
![From the quoted Cloudflare Blog
---
Using Box<[T]> solves both problems. It can’t grow after creation, so it doesn’t need a capacity field or reserve space for future elements. The same applies to String, which also carries a capacity field. Box<str> drops it.
Each cache entry stores 8 Vec and String fields. Replacing them with Box<[T]> and Box<str> saves 8 bytes per field, 64 bytes per entry. It also eliminates the excess heap memory that Vec reserves for future growth. The combined savings add up to over 15 terabytes with over 250 billion cache entries.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ithkhkqhgrpew6b4obhfdw4p/bafkreige7rohbqzvro6tkmvtkhbs7jdm7b4pxsmsq5n2uicnmpgnsy2yma)
![screenshot of helix edit with the ayu dark theme showing the text
parseNumberLine :: [Int] -> String -> [[Maybe Int]]
parseNumberLine indexes s = go [] s
where
isGroup :: String -> Bool
isGroup [] = True
isGroup [' '] = True
isGroup (' ' : tl) = (length s - length tl) `elem` indexes
isGroup _ = False
go :: [[Maybe Int]] -> String -> [[Maybe Int]]
go acc (' ' : ' ' : ' ' : d : tl) | isGroup tl && isAllDigits [d] = go' ([n , n , n , y d] : acc) tl
go acc (' ' : ' ' : c : d : tl) | isGroup tl && isAllDigits [c, d] = go' ([n , n , y c, y d] : acc) tl
go acc (' ' : b : c : d : tl) | isGroup tl && isAllDigits [b, c, d] = go' ([n , y b, y c, y d] : acc) tl
go acc (a : ' ' : ' ' : ' ' : tl) | isGroup tl && isAllDigits [a] = go' ([y a, n , n , n ] : acc) tl
go acc (a : b : ' ' : ' ' : tl) | isGroup tl && isAllDigits [a, b] = go' ([y a, y b, n , n ] : acc) tl
go acc (a : b : c : ' ' : tl) | isGroup tl && isAllDigits [a, b, c] = go' ([y a, y b, y c, n ] : acc) tl
go acc (a : b : c : d : tl) | isGroup tl && isAllDigits [a, b, c, d] = go' ([y a, y b, y c, y d] : acc) tl
go acc (' ' : ' ' : c : tl) | isGroup tl && isAllDigits [c] = go' ([n , n , y c] : acc) tl
go acc (a : ' ' : ' ' : tl) | isGroup tl && isAllDigits [a] = go' ([y a, n , n ] : acc) tl
go acc (' ' : b : c : tl) | isGroup tl && isAllDigits [b, c] = go' ([n , y b, y c] : acc) tl
go acc (a : b : ' ' : tl) | isGroup tl && isAllDigits [a, b] = go' ([y a, y b, n ] : acc) tl
go acc (a : b : c : tl) | isGroup tl && isAllDigits [a, b, c] = go' ([y a, y b, y c] : acc) tl
go acc (' ' : b : tl) | isGroup tl && isAllDigits [b] = go' ([n , y b] : acc) tl
go acc (a : ' ' : tl) | isGroup tl && isAllDigits [a] = go' ([y a, n ] : acc) tl
go acc (a : b : tl) | isGroup tl &&](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ithkhkqhgrpew6b4obhfdw4p/bafkreih7dphfnpuon4umkbfhxvg46epgdll3mveumpkbuocsvzgexsz2re)
