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Mikko Nylén mnylen

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@mnylen
mnylen / README.md
Created August 1, 2026 03:44
Agent Safehouse / sandbox-exec profile to allow ios-simulator-mcp / idb to interact with iOS simulator

Custom sandbox-exec profile for idb (used by ios-simulator-mcp).

  1. Place the idb.sb to $HOME/.config/sandbox-exec/idb.sb or to some other location
  2. Launch with safehouse --enable=xcode --append-profile="$HOME/.config/sandbox-exec/idb.sb" codex

NOTE: --enable=xcode is needed, this builds on top of that.

@mnylen
mnylen / strace zsh
Created April 1, 2019 10:04
wait4(-1, 0x7fffe0ce8fd4, WNOHANG|WSTOPPED|WCONTINUED, 0x7fffe0ce8ff0) = 0
rt_sigreturn({mask=[]}) = -1 EINTR (Interrupted system call)
kill(8741, SIGCONT) = -1 ESRCH (No such process)
kill(8744, SIGCONT) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [INT CHLD WINCH], 8) = 0
rt_sigsuspend([], 8) = ? ERESTARTNOHAND (To be restarted if no handler)
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_CONTINUED, si_pid=8744, si_uid=1000, si_status=SIGCONT, si_utime=0, si_stime=0} ---
rt_sigprocmask(SIG_BLOCK, ~[RTMIN RT_1], [CHLD], 8) = 0
rt_sigprocmask(SIG_SETMASK, [CHLD], ~[KILL STOP RTMIN RT_1], 8) = 0
wait4(-1, [{WIFCONTINUED(s)}], WNOHANG|WSTOPPED|WCONTINUED, {ru_utime={tv_sec=0, tv_usec=0}, ru_stime={tv_sec=0, tv_usec=15625}, ...}) = 8744
@mnylen
mnylen / docker-login.sh
Last active September 13, 2018 06:07
Get JWT token to access private repositories on hub.docker.com
function echoerr {
echo "$@" 1>&2;
}
docker_username=${DOCKER_USER:-}
docker_password=${DOCKER_PASSWORD:-}
if [ -z "$docker_username" ]; then
if command -v docker-credential-osxkeychain > /dev/null 2>&1; then
readonly registry_url="https://index.docker.io/v1/"
@mnylen
mnylen / gist:b345ff504630ce318e043b98478c01cf
Last active April 3, 2018 04:48

S3/CloudFront problems

  • CloudFront: updates are very slow, taking about 20 - 30 minutes each time you try to change something to fix some of the things listed here
  • CloudFront: no support for Cache-Control: stale-while-revalidate (would be nice for index.html etc. that can't be hashed)
  • CloudFront: does not forward the original host name to a custom origin (would be useful for creating a S3 proxy origin to fix some of the issues here, instead of trying to implement them w/ lambda@edge)
  • S3: Vary: Origin header is not added for non-CORS requests    * this is needed to fix a browser caching issue where if you load an image via , the browser will cache the response to that. Then, when you do cross origin XHR to the same object to receive metadata, the browsers will use the cached response and fail, because it didn't contain Access-Control-Allow-Origin header for the original request made by - and because there was no Vary: Origin, browser doesn't think it could get a di
@mnylen
mnylen / checklist.md
Last active September 20, 2015 20:19
Checklist to get ElasticSearch cluster on AWS EC2 working

Checklist to get ElasticSearch cluster on AWS EC2 working

  • Install cloud-aws-plugin (https://github.com/elastic/elasticsearch-cloud-aws)

  • Give your EC2 instances IAM Instance Policy with permission to ec2:DescribeInstances. The plugin will automatically get correct access keys after this.

    • You should really do the above, but you can also just create a new IAM user and set up cloud.aws.access_key and cloud.aws.secret_key in elasticsearch.yml. But you really should create instance policy instead.

  • Set discovery.type: ec2 in elasticsearch.yml

@mnylen
mnylen / _.md
Last active April 23, 2021 21:17
Debounced fetching to reduce number of requests when doing API proxying through GraphQL

Simple implementation of debounced fetching in GraphQL to allow merging of multiple rest / database requests into one. Although this example uses GraphQL, the debouncedFetch / fetchProgramPlaycount implementations could probably be used in any context to achieve the same result.

This approach was first described by @leebyron at graphql/graphql-js#19 (comment)

For example this allows turning ten requests for playcounts from this GraphQL query into just one:

{
  latestPrograms(first: 10) {
    name,

playcount

@mnylen
mnylen / gist:8c4010ab353f4886f89c
Last active March 12, 2021 16:33
Using the new Safari View Controller from React Native application

Using the new Safari View Controller from React Native application

  • Safari View Controller is iOS 9 only. You need Xcode 7 (beta 2 currently) to use it

  • React Native 0.6.0 is the minimum I got this working on

You might need to add this to your Info.plist in order for iOS 9 to load your application correctly:

<key>NSAppTransportSecurity</key>
@mnylen
mnylen / Dockerfile.tmpl
Created July 5, 2014 05:01 — forked from mattes/Dockerfile.tmpl
# using VirtualBox version $VBOX_VERSION
FROM boot2docker/boot2docker
RUN apt-get install p7zip-full
RUN mkdir -p /vboxguest && \
cd /vboxguest && \
curl -L -o vboxguest.iso http://download.virtualbox.org/virtualbox/$VBOX_VERSION/VBoxGuestAdditions_$VBOX_VERSION.iso && \
7z x vboxguest.iso -ir'!VBoxLinuxAdditions.run' && \
sh VBoxLinuxAdditions.run --noexec --target . && \
@mnylen
mnylen / hello.rs
Last active August 29, 2015 14:00
use std::io::BufferedReader;
use std::io;
fn main() {
let mut reader = BufferedReader::new(io::stdin());
println!("What is your name?");
let age_input: ~str = reader.read_line().unwrap();
let age_trimmed: &str = age_input.trim();
@mnylen
mnylen / gist:3453009
Created August 24, 2012 17:11
import org.scalatra._
import org.scalatra.test.specs2._
class TestTest extends MutableScalatraSpec {
override def start() {
println("/// STARTING JETTY")
super.start()
}
override def stop() {