Fletcher

@fletcheaston.com

128 Followers 314 Following

he/him staff swe, casual runner @fletcheaston on every platform building software, dreaming of hardware

Selfie after the Revel Reno Tahoe Marathon holding up the finisher medal.
Selfie from Eden Park in Cincinnati, overlooking the city.
Screenshot of a notification from the Starbucks app reading "Now discover drink ideas with ChatGPT".
Atlassian's status page not loading/working.
Advent of Code 2025's completion screen.
Advent of Code Day 11 Part 1 solution, using a recursive CTE to calculate paths between nodes.
Personal times for Advent of Code 2025.
Screenshot of Postico 2 SQL workbench tool showing two statements. The first is "CREATE EXTENSION plpython3u;", which creates the Python extension (allowing you to run Python code from SQL). The second is creating a function that uses the z3-solver library in Python, but the function is defined in Postgres using the plpython3u extension.
Advent of Code 2025 personal times, with Day 10 at the top. My Part 1 time for Day 10 is 1 hour, 16 minutes, 13 seconds. My Part 2 time for Day 10 is 23 hours, 54 minutes, 24 seconds.
Screenshot of the Postico 2 SQL workbench tool. The first line reads "CREATE EXTENSION plpython3u;". The second statement creates a function to test the Python/z3-solver code. The third line runs the function. Below that, the output is displayed.
Desmos graphing calculator displaying the challenge prompt for Advent of Code 2025 Day 9 as a polygon.
SQL query calculating the final result for my Advent of Code 2025 Day 8 Part 2 solution. The query selects the last member from the "circuit members" table, finds the closest node to it, and returns the x-coordinates of the two nodes multiplied together.
Screenshot of my Advent of Code 2025 times so far. The latest day, Day 7, shows 34 minutes 24 seconds for Part 1 and 3 hours, 12 seconds for Part 2.
SQL statement calculating the final result for the Advent of Code 2025 Day 6 challenge. The code calculates both a multiplication aggregate and summation aggregate across a dataset, joins the aggregates to the operator, then calculates a final result.
Screenshot of a helper function in Postgres. The function is called "largest_index", and it calculates the index of the largest value in an array given exclusive start/end positions.
Screenshot of a helper function in SQL for chunking strings into an array of equally sized strings.
Screenshot of SQL code showing a snippet of my Advent of Code 2025 Day 1 solution.
Screenshot of the Apple Fitness app showing a summary of Saturday, September 6th. The step count for the day is 32,230 steps. The step distance for the day is 19.39 miles. The move ring shows 2,828/900 active calories burned. The exercise ring shows 199/30 minutes of exercise. The stand ring shows 12/12 hours of standing.
Apple Fitness app showing a 10.55 mile indoor run.
The game "Word Play" showing the "you win" screen for hard mode. 46 words were used, 11 perks were purchased, and the best word was "awakener" for 308 points.
A screenshot of Pokemon Go. I'm trying to catch a wild, shiny Zapdos.
A selfie of Fletcher immediately after finishing the Cincinnati Flying Pig Marathon. There's a mylar blanket around his shoulders, a marathon medal hanging from his neck, and a plate of LaRosas pizza in his hand.
Selfie of Sam on the left and Fletcher on the right. Both are wearing Flying Pig 10k shirts. Sam has a 10k medal, Fletcher has both a 5k and 10k medal.
Screenshot of the Apple Fitness app showing a hiking workout from today. The workout shows 2:59:41 duration and 9.17 mile distance. The total elevation gain was 1,972 feet. The average heart rate was 143 beats per minute. The average pace was 19:35 per mile.
Screenshot of two graphs displaying trendline data for SARS-CoV-2 sample submissions. The top graph shows worldwide data. The bottom graph shows USA data. The x-axis is days for both graphs, ranging from the start of the pandemic (December 2019) to the last submission date (December 2024). The y-axis is counts for both graphs. While the graphs have a similar overall shape, there are significant variations between the two over certain time periods. The selected dates are January 3rd, 2022 for the top graph and January 4th, 2022 for the bottom graph. These dates show when the most samples were collected in a single day.
Screenshot of the Apple Watch showing rings for the day. The movement ring shows 2,901 active calories burned. The exercise ring shows 234 minutes of exercise. The stand ring shows 19 hours of standing.
Photo of a pegboard with several medals attached. In front of the board are Lego architecture sets of various cities.
Screenshot of the Apple Fitness app showing today's progress. The move ring shows 1,758 active calories burned. The exercise ring shows 116 minutes of exercise. The stand ring shows 11 hours of standing. The step count shows 21,805 steps. The step distance shows 13.23 miles.
Screenshot of the Apple Fitness app showing today's progress. The move ring shows 1,758 active calories burned. The exercise ring shows 116 minutes of exercise. The stand ring shows 11 hours of standing. The step count shows 21,805 steps. The step distance shows 13.23 miles.
Screenshot of the Apple Fitness app showing the workouts. The first is a 3.06 mile outdoor walk. The second is a 13.17 mile outdoor run. The third is a 2.00 mile outdoor run.
Fletcher Easton taking a selfie after running a half marathon, wearing the medal from the race.
Screenshot of a terminal. The last command run is `rm -rf /Users/fletchereaston/Desktop/gisaid`, which took 8 hours, 19 minutes, 47 seconds to complete.
A 1 cubic inch tungsten cube sitting on a table.
Screenshot of the Mac Finder app. A folder named "gisaid" is displayed with 482.93 GB of data on disk.
Screenshot of the Apple Fitness app, showing four workouts. The first is a 5.38 mile indoor run. The second is a 0.33 mile indoor walk. The third is a 2.06 mile outdoor walk. The fourth is a 1.33 mile outdoor walk.
A screenshot of 5 terminals crunching data in parallel.
A photo of the Warp terminal on Mac. The terminal displays the command "uv run manage.py lastz EPI_ISL_402124" at the top, with several lines of output displayed below.
Screenshot of the Apple Fitness app. Three workouts are displayed. The first is a 0.72 mile outdoor walk. The second is a 1.19 mile indoor run. The third is an 11.04 mile outdoor run.
Screenshot of the Apple Fitness app showing a 7.13 mile run. The screenshot includes some metrics about the workout; the workout time was 1:15:04, the distance was 7.13 miles, the active calories burned was 1,097, the total calories burned was 1,222, the average cadence was 157 steps per minute, the average pace was 10'31" per mile, and the average heart rate was 170 beats per minute.
A note from my employer reading... "Fletcher, Your impact on reporting has been nothing short of incredible. From owning improvements and tackling the bug space to getting us back on track with Delay Send, you've been at the front lines of every major reporting incident. Thank you for your hard work, problem-solving skills, and relentless firefighting-you're a true superstar! Rad Al"
A screenshot of the Apple Fitness app showing a hiking workout. The path traveled is displayed on a map, and information regarding elevation gain, heart rate, and pace are displayed below the map.
Screenshot of the Apple Fitness app. Three workouts are logged for today. From top to bottom, they are a 0.62 mile outdoor run, a 4.00 mile indoor run, and a 5.76 mile outdoor run.
Screenshot of the Apple Fitness app of an indoor running workout. The time is 1 hour 49 seconds. The distance is 6.53 miles. The active calorie count is 898. The total calorie count is 1,000. The average cadence is 163 steps per minute. The average pace is 9 minutes 18 seconds per mile. The average heart rate is 178 beats per minute.
Tesla's share price over the last year. There's a spike starting in November 2024 that has declined rapidly since February 2025.
A screenshot of the Apple Health app showing the sleep cycles and time I experienced over the last day. I spent 10 hours 4 minutes in total sleeping.
A screenshot of the iPhone Fitness app showing stats from a recent hiking workout. The stats are: - 2 hours 7 minutes 32 seconds of workout time - 2 hours 23 minutes 53 seconds of elapsed time - 5.83 miles covered - 827 active calories burned - 1,040 total calories burned - 991ft of elevation gained - 21 minute 51 second average pace - average heart rate of 144 beats per minute
Scan of the Potato & Pea Stew with Indian Spices recipe from the Every Season is Soup Season cookbook.
Video of a web app table, where colored bars on the right side of the table grow and shrink to indicate how many other users are actively looking at the same row.
Scan of the Smoked Paprika Tortilla Soup recipe from the Every Season is Soup Season cookbook.
Scan of the Roasted Tomato Soup recipe from the Every Season is Soup Season cookbook.
Scan of the Pressure Cooker Black Bean Soup with Orange & Cumin recipe from the Every Season is Soup Season cookbook.
Scan of a recipe for Chipotle Cocoa Three-Bean Soup from the book Every Season is Soup Season
An Elgato Stream Deck Mini, Standard, and XL on a table side by side.
A work-in-progress screenshot of my personal genome browser. There are position controls for adjusting the visible region of the genome, and a view of the genes/proteins for the SARS-CoV-2 reference genome. The Spike Protein section has been selected, with a tooltip displaying more information about the Spike Protein.
Advent of Code 2024 completion animation.
My setup for Advent of Code 2024 Day 25. An iPad on the left functions as an external monitor for the MacBook Pro in the center.
My Advent of Code 2024 Day 18 Part 2 solution. A map is displayed with a path from the start to finish highlighted in blue. Blocks are added to the map until no path from start to finish can be found.